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byThinkerJanuary 6, 2014, 11:59 pm16Views

Touchscreen LCD desktop 3D printer using LASER based tech for high speed prints, 7x7x9 build area, and detail.

Pegasus Touch: The Next Generation of Desktop Consumer 3D Printing Using Laser Technology

As designers and engineers, we have found lasers and 3D printers to be amazing tools. Naturally, we wanted to combine the two and build a 3D Printer with lasers! Thanks to the wide adpotion of Bluray players, low cost near UV laser diodes which can cure liquid resin are now readily available making high quality 3D printers a reality.

Using software/electronics technology developed for our laser cutting/engraving products, weve perfected an affordable high quality laser based Stereolithography (SLA) 3D Printer that sets a new standard for desktop 3D printing for every maker and maker to be. Starting below $2000 on Kickstarter, Pegasus Touch produces by far the best quality 3D printing output for its price.

Come visit us at CES 2014 in Las Vegas Booth 32027 Jan 7-10, 2014 and see the printer first hand!

Speed: Controlling lasers properly takes years of experience. Pegasus Touchs advanced control electronics can pulse its laser source at over 500kHz while moving the laser beam at 3000mm/sec thanks to the same special FSL real-time laser processor used in $100,000 scanning laser systems. Faster laser control allow us to tune the resin to cure more quickly without sacrificing quality allowing for up to 10x the speed of FDM printers and 3-5x the speed of other SLA printers.

Output Quality: Nearly all current low desktop 3D printers below $3000 use FDM technology but Laser based SLA technology has set the gold standard for quality since it was invented in the 1980s. Due to finer control offered by laser technology, the finish of laser based SLA printers is just better.

Video used with permission. Video Copyright (c) of its respective owner.

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Wuhan Yuanming Model Trade Co., Ltd.

Mechanical Parts & Fabrication Services

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1 Piece/Pieces sla 3d printer jewelry 3d printing cnc jewellery service

1000 Piece/Pieces per Week sla 3d printer jewelry 3d printing cnc jewellery service

Broaching, Drilling, Etching / Chemical Machining, Laser Machining, Milling, Other Machining Services, Rapid Prototyping, Turning, Wire EDM

Aluminum, Brass, Bronze, Copper, Hardened Metals, Precious Metals, Stainless Steel, Steel Alloys, ABS,PMMA,PC,PP,POM,PA,PS,PEEK,PTFE,Silicon,Rubber

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ABS,PMMA,PC,PP,POM,PA,PS,PEEK,PTFE,Silicon,Rubber,Aluminum,Steel,Brass

Anodizing,polishing,UV coating,painting,etc

Caliper, Coordinate Measuring Machine

(1)0-100kg: express & air freight priority; (2)100kg: sea freight priority;(3)As per customized specifications for sla 3d printer jewelry 3d printing cnc jewellery service

Standard package/ Carton or Pallet/ As per customized specifications

(1)0-100kg: express & air freight priority; (2)100kg: sea freight priority;(3)As per customized specifications for sla 3d printer jewelry 3d printing cnc jewellery service

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2.Product Materials:Plastic( ABS,PMMA,PC,PP,POM,PA,Silicon,Rubber);

Metal(aluminum,copper,brass,stainless steel,sheet metal)

3.CNC max size:No maximum size but bigger, we have Gantry CNC machine;3D printer max size:580mm x 580mm x 360mm

4.Tolerance:+/- 0.01mm – 0.1mm as per requirements.

5.Drawing Format Available:STEP, STP, IGS, X_T, STL, PDF, DWG

6.Design Softwares:NX_UG, Pro/E, Catia, Moldflow, AutoCAD

7.Processing:CNC, High speed carve, E.D.M, Wire cut, Drill, Surface Finishing, etc.

8.Surface Finishing:Painting, polishing, silk printing, anodizing,electroplating,etc.

9.Delivery time:3-15 days usually,and can be discussed upon to quantity

10.Packaging Details:Standard package/ Carton or Pallet/ As per customized specifications

(1)0-100kg: express & air freight priority; (2)100kg: sea freight priority;(3)As per customized specifications

2.Stainless Steel(SS201,SS303,SS304,SS316,etc.)

4.Aluminum(Al6061,Al6063,AL7075,AL5052,etc.)

7.Brass(C36000(C26800),C37700(HPb59),C38500(HPb58),C27200(CuZn37),C28000(CuZn40))

8.Plastic(ABS,PC (Polycarbonate),PMMA (Acrylic),PA (Nylon),PA+GF,PP,PE,PU,PS,POM,PVC,Soft Rubber,Silicone Rubber,Bakelite,Chemical Wood,Solid Wood)

1.Payment Terms:30 -50%T/T in advance, 70-50% balance before delivery; Pay Pal or Western Union is acceptable.

2.Trade terms:EXW, FOB, CIF, as per customers request.

3.QC System:Caliper, Coordinate Measuring Machine 100% inspection before shipment.

Note:All parts are custom made according to customers drawings or samples, no stock. If you have any parts to be made,please feel free to send your drawings or samples to us.>

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3.SLA/SLS(Stereolithography/Selective Laser Sintering) 3D printer prototyping

4.Silicone Rubber Mold and Vacuum Casting

1.Medical Devices: Ultrasound scanner case, Ultrasonic diagnostic imaging care, etc.

2.Telecommunications: Micro phone, speaker, monitor case, computer, etc.

3.Auto Parts: Dashboard, car lamp, bar, car door, motorcycle, scooter, bikeetc.

4.Household appliance: Cooker, air conditioner, TV, fan, shower, fridge, etc.

5.Electronic: Digital camera, mp3/mp4, hair dryer, television, calculator, etc.

6.Kitchenwares: Tablewares, bottles, lighter, cookie molds, plates, cups, etc.

7.Other: Custom made, toys, exhibition samples, testing samples, etc.

ABS, PC (Polycarbonate), PMMA (Acrylic), PA (Nylon), PA+GF, PP, PE, PU, PS, POM, PVC, Soft Rubber, Silicone Rubber, Bakelite, Chemical Wood, Solid Wood, Aluminum, Brass, Copper, Stainless Steel, Titanium, Iron, Magnesium, Zinc, etc

Sanding, Sandblast, Deburring, Polishing, Vapor Polishing, Painting(Matt, Gloss, Texture), UV Finish, Silkscreening, Pan Printing, Hot Stamping, Laser Engraving, Passivation, Anodizing, Brushed, Plating, Vacuum Plating, etc.

Wuhan Yuanming Model Trade Co., Ltdis a branch of Jiangsu Yuanming Model Co., Ltd, which is the biggest and most professional manufacturer who supply prototyping & modeling service and maching service in Jiangsu.

The general manager Mr Yuanming Wu, who has been in this field for 24 years, is famous as the expert of prototyping& modeling in China. Early in 2002, he established the Jiangsu Yuanming Model Co. Ltd with his innovative ideas and 10 years of R&D experience. He loves this field and first introduced transparent ABS material instead of conventional PMMA to make transparent products, by which successfully enhancing the strength and smash-resistance of products.

Yuanming Model also attaches importance to technology improvement and accumulation. Now it has 10 super R&D engineers and 50 experienced technical staffs. The whole team are united and quite good at processing highly difficult prototypes and models. Without being limited by material and processing difficulty.

And it has well-equipped operating conditions, such as international advanced rapid prototyping equipment, vacuum casting system, large-scale precision CNC maching center, SLA and SLS 3d printing equipment, focusing-on-making & functional-test mockup system and precision mockup system etc. And the main equipments include 14 CNC maching centers, 1 vacuum machine and 1 sand blasting machine.

For its good service, Yuanming have become the reliable partner of Benq, Panasonic, Philips, Haier, Midea, Sharp, Chery etc. famous enterprises.

A1:Provided your 3D Drawings,2D Drawings, Material, Quantity,Surface Finished, Tolerance, and other require, you can send those information to our email , leave message,TradeMessage,Skype.

A2: 1 Hours – 24 Hours, we will send Quotation as soon as possible.

A3:.STP, .STEP, .IGS, .STL, .CAD, .PDF,etc.

A4: According to your drawings, quantity, other special require, in general 3-15 working days.

Q5:How to ensure the quality of the products?

A5: We have professional quality inspection department check quality, and will send confirmed pictures to you before shipping goods. Factory would repair or rework if dont meet your require.

A6:We can ship the goods by international express, like DHL, FEDEX, UPS, TNT, EMS, etc. Large or Heavy by Sea trasportation.

Q7:How to package ensure products dont damage?

A7:Paper or Wood Box outside, each products would be wraped by EPE Foam, foam filled extra space for anti-vibration.

A8: We accept Paypal ,Western Union, T/T ,HSBC ,Trust Assurance,etc. 50% before production, 50% before shipping.

Any other questions or we can do for you please feel free to contact us.

Not exactly what you want? 1 request, multiple quotationsGet Quotations Now

The supplier supports Trade Assurance A free service that protects your orders from payment to delivery.

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The T-1000 Raises the Compete Level for SLA 3D Printers

The T-1000 resin-powered desktop 3D printer

The market for SLA 3D printers is quite challenging these days.

Years ago you could construct a simple laser-resin 3D printer and make a good business, but entering the market today is very tough, with several highly refined products sold by well-run companies.

As a result Ive seen multiple basic SLA-style desktop 3D printer launch campaigns fail miserably in recent months. But there is one new product that might be able to break that barrier: the T-1000 from G3D.

The competitive market for desktop SLA 3D printers seems to have taken two angles: technical superiority and ease of use. G3D has taken the former strategy for their T-1000 unit.

What technical advantages does the T-1000 carry? It has a rather large build volume for a resin 3D printer, of 179.2 x 134.4 x 300mm, which is quite tall.

They also claim a build speed of 66mm per hour, which is quite fast, although not as fast as some of the more exotic SLA systems that employ unusual layering methods. However, this is a low cost machine, so those approaches are not really feasible.

Another technical advantage they propose is a minimum layer size of only 0.0075mm (7.5 microns), which is not nearly the smallest weve seen on 3D printers (the OWL Nano 3D was able to hit 0.1 microns in 2014). But 7.5 microns is certainly exceptionally good resolution, but I wonder whether that increased resolution is worthwhile given the additional print time required. But it is an option for those using the T-1000.

The T-1000 includes a self-leveling system for their resin tank. As you can guess, a tippy resin tank is not a good idea for 3D printing and all resin machines include some method of leveling. But the T-1000 has an automatic system. Its not clear how this works, but it could be a side effect of their layer management system, in which the entire tank tips to release the layer.

Most inexpensive resin-based 3D printers make use of off-the-shelf DLP projectors (unless they use lasers), and pricing for such machines is often quoted without the projector, as if operators have an appropriate projector handy. Some may do so, but many will not. In the case of the T-1000, the machine not only includes the projector, but a custom-made projector at that.

The other advantage held by the T-1000 is pricing. They like to compare themselves to the major SLA desktop machines such as those from Formlabs, B9 and even 3D Systems. Against those machines, their price is certainly very low at only USD$1,900.

Note: There is a way to instantly obtain a USD$100 discount by using their not-so-secret easter egg on their website:

The hidden easter egg allowing USD$100 off the T-1000 desktop 3D printer

Another feature you might consider is that they provide some evidence that the machine is ready to ship, as their video shows the machine packed up and ready to go, as well as pallets of T-1000s heading out the door. Those could be made-up shots, but at least thats more than most launch campaigns offer.

A T-1000 desktop 3D printer boxed and ready for shipping

But my concern is not among their technical achievements, but rather about ease of use, the other aspect of competition. In my estimation, 3D printers tend to be used more if they are easy to operate and are extremely reliable. Having spent some time with the Formlabs Form 2 recently, I can say that Formlabs has provided an extraordinarily simple operational process and printing appears completely reliable.

For a new machine like the T-1000 we wont know reliability statistics until a large group of operators gets their hands on them. It may be that the machine is just as usable as others, but its not yet certain. Thats one of the risks you take on when backing a new machine.

Kerry Stevenson, aka General Fabb has been writing Fabbaloo posts since he launched the venture in 2007, with an intention to promote and grow the incredible technology of 3D printing across the world. So far, it seems to be working!

Fabbaloo is a daily online publication focusing on the 3D print and additive manufacturing industries. We provide deeper analysis of developments in current and future technologies as well as corporate matters. If theres something happening in 3D technologies, especially FDM, SLA, SLS and Stereolithography, well have an opinion about it.

Tech Breakdown Peopolys Moai SLA 3D Printer

Tech Breakdown: Peopolys Moai SLA 3D Printer

MatterHackers pros take an in-depth look at why this incredibly precise resin 3D printer is quickly becoming a crowd favorite.

ThePeopoly Moai(Moh-eye) is a simple SLA printer which you can build yourself in as little as 6 hours. The kit costs under $1,300 and gets incredibly detailed prints. Here we are going to take a look at why the Moai is an awesome resin printer that wont break the bank, and why it should be added to your 3D printing workplace.

SLA stands for Stereolithography, which is a completely different process from the Fused Filament Fabrication (FFF) printers you are probably used to.

Unlike FFF printers, which melt plastic and spit it out, SLA printers use a laser to harden light sensitive resin. The resin is kept in a tank with a transparent bottom. Below is the laser, which shoots up into the tank. The object is printed upside down, hanging from a platform which rises up out of the tank.

The advantage of SLA is the incredible detail it can achieve. The highly focused laser on the Moai allows it to print details as small as 0.067 mm. This is an order of magnitude better than the 0.400 mm nozzles standard on most FFF printers. The Moai can also print layers down to 0.015 mm thick, which is one quarter the recommended minimum on most FFF machines.

Unlike digital projector based resin printers, whose accuracy is determined by the resolution of their LCD, the Moai is an analog system. The laser is aimed by two mirrors mounted on galvanometers. The galvanometers are driven by a signal from a 16 bit DAC. This means that the theoretical maximum positioning accuracy is 2 microns.

To demonstrate what the Moai can do, we decided to print our mascotPhil A. Mentscaled down to 6 mm tall. All of his details are still there, although you may only be able to see them under a microscope.

Peopoly (pronounced pee-opoly) is a new 3D printing company founded by two friends in 2015; Shu (Mark) Peng and Richard Li. Their goal was to create a laser SLA printer that was affordable enough for regular makers, not just professionals. The company has operations in Los Angeles, CA and Hong Kong.

In March 2017 they launched a Kickstarter campaign for theMoai. The campaign was successfully funded in April and they began shipping printers to backers in July of the same year.

The Moai takes about 6 hours to build, from taking it out of the box to doing your first test print. You can get your Moai and start printing with it the same day.

The major components of each Moai are assembled at the factory, calibrated, tested, and then taken apart and put in the box for you. The build is easy because you are just combining subassemblies. The kit comes with all the tools you will need. No soldering or other specialized skills are required. All the difficult work has already been done for you.

Many SLA printers require you to use resin made by the printers manufacturer, but the Moai does not. It allows you to adjust all laser power and exposure settings, which means thatyou can use any resin you want with it. We recommend getting the Peopoly resin to start off with, since the default settings are tuned for that resin and it will work best when you are trying your printer for the first time. However once you have some experience with the machine you can try any of the other resins we carry, like the MakerJuice or the PhotoCentric resin. Just remember that each resin is different, though, so you will need to do some experimentation to get the settings right.

Peopoly resinsalso work in printers other than the Moai. In particular, their resin works well with the Form 1. The Moai resin vat is also interchangeable with the vat from the Form 1.

One thing we particularly like about the Moai is that it prints using regular G-Code, just like an FFF printer. This means that it will work with your favorite slicing program. Unlike most SLA printers, you are not locked in to using the software provided by the printers manufacturer. Peopoly has a specially tuned version of Cura that they recommend, but you can also use MatterControl or Slic3r.

All in all, the Peopoly Moai SLA resin 3D printer is an awesome machine that gets incredibly detailed prints, doesnt take long to build, and more importantly, doesnt break the bank!

Find the Moai kithere, or the fully assembled versionhere.

3D Printing in Education Beyond STEM

3D Printing in Education: Beyond STEM

Many educators think that 3D printers are only used in math and science classes. Not true! Meet two educators who are getting creative with 3D printing in the classroom and achieving breakthrough results in both K-12 and higher education settings.

Now that 3D printers have come down in price and size, one of the most exciting applications of the technology has been in the classroom. When I mention 3D printing in education one might immediately think of buzzwords like STEM (Science, Technology, Engineering, and Math) or STEAM (throw Arts in there) which are important competencies we want our kids to be proficient in.

MatterHackers works with all sorts of inspiring teachers and classrooms to get them up and running with the 3D printers they need, and here are two unique stories worth some extra attention.

The first story belongs to Jefferson Middle School, which is creating a 3D printing curriculum for at-risk English learners.Heather Wolpert-Gawron is a language arts teacher, and newly assigned part-time Ed Tech Project-Based Learning TOSA (Teacher On Special Assignment) at Jefferson. She has been leading classrooms for 16 years, and has been documenting her recent 3D printing journey for Edutopia, and on her own website, A self-professed layman and tech newbie, Wolpert-Gawrons imagination was sparked when she realized how 3D printing could impact student engagement. She also appreciated the philosophy of the open-source maker movement behind the printers to try and change the world.

I started thinking about new technology that would engage kids, which we could learn together, explains Wolpert-Gawron combined with a need at the middle school level to move beyond me-centric thinking, and think about how we can change the world.

Wolpert-Gawron has come up with a number innovative ways to engage students, incorporating theprocessof 3D printing in her lessons just as much as the project being printed. She is developing a curriculum particularly for ELL (English Language Learners) students who are having trouble speaking and writing English. This curriculum would give the kids something more interesting to speak and write about. Statistically, these kids are dropping out of school due to disengagement with the traditional learning process, so there needs to be a better solution. PBL (Project-Based Learning) units on 3D printinge-NABLEassistive devices for other children is a great jumping-off point for classrooms to get started with this technology.

Worksheets will never teach grit and persistence. Wolpert-Gawron explains. I wanted to acknowledge high-level reflection on failure through writing exercises about problems and solutions encountered using the 3D printers. Adults can see failure as a step forward in itself, but kids see it as a wall.

An e-NABLE hand being printed in Wolpert-Gawrons classroom.

In addition to tracking their 3D printing progress in writing, students will also be writing formal letters to the recipients of the e-NABLE hands they produce. To teach the writing process, for every hand they send out through the school year, students will return to their original letter and revise it, acknowledging growth in their writing from the first hand of the school year to the last.

Another project will incorporate creating Rube Goldberg machines (complex, step-by-step machine to perform a simple task like the game Mousetrap) to encourage kids to think and write about sequencing.

Sequencing can be challenging, especially for these at-risk kids who are not processing information the same way as their peers, says Wolpert-Gawron With the display of the machine, they can write and speak about the steps in a much more concrete way.

Wolpert-Gawron sees 3D printing in the classroom as an opportunity for students AND educators to move teaching forward together by getting the technology into the classrooms and see where the kids take it, rather than waiting for curriculum and standards to formally be devised and distributed.

Students finishing a print just hot off the bed.

The ultimate goal with the 3D printers would be to create a classroom that ripples out to the community at large. Wolpert-Gawron projects. Perhaps creating websites to solicit needs from other communities, and have a real impact solving problems so the kids expand out of that me-ness to think of others.

Wolpert-Gawron is about to launch the schools first Invention Convention, where 600 student participants from 6th to 8th grade will develop prototypes of new products using Tinkercad for design, and use the schools fiveUltimaker 3D printersandCrafty 3D printing pensto iterate on their ideas and bring them to life.

The 3D printing pens are AWESOME! gushes Wolpert-Gawron. Elementary and primary level kids live in a concrete world while trying to learn the abstract, and the 3D printing pen is an easy tactile medium for anyone to work with. You take abstract concepts like letter and number recognition, and show the immediacy of how concrete your imagination can become.

Students engaging with the 3D printing pen.

Another goal is to roll these ideas out to other classrooms, and not have this classroom be an island. Wolpert-Gawron acknowledges that change will happen slowly, but her district already has three elementary schools interested in 3D printers for their makerspace. Wolpert-Gawron hopes that once solid curriculum is designed, it may give educators that final incentive to try something new.

Curriculum is my thing. I love it. 3D printing has helped to open up another way of thinking about curriculum. Its so exciting, says Wolpert-Gawron.

On the other side of the broad education spectrum, 3D printing is making the rapid distribution of up-to-the-minute anthropological discoveries to higher education reality. Which brings us to our second story,Indiana University South Bend is using 3D printed replicas to bring recently discovered fossil specimens off the page and into the lab. When University-level students can (literally) get their hands on new developments in their field quickly, these discoveries can immediately be incorporated into potentially life-changing research. Darryl R. Ricketts, M.S., Adjunct Instructor, Anthropology at Indiana University South Bend is doing just that.

In 2013, a new species of hominid (early humans) was discovered by a team of anthropologists in Johannesburg, South Africa. When the team published their findings in late 2015, Ricketts saw an opportunity to translate their 3D scans of an ancient skull and bottom jaw into .stl files that his students could print in the classroom for a more hands-on learning.

Ancient specimens in the anthropology departments material cultures lab.

Photo credit: Traci Foster-The Preface

3D printing is especially useful forvalidation research, says Ricketts. Papers were published using the volume of the brain of this species to figure out what happened to them. With these replicas, undergraduate and graduate students can check volume metrics on their own and validate the findings.

Ricketts hopes more researchers and museums will begin to post their 3D files online so this can happen more often.

Digital recreation is becoming a very large aspect of anthropology and archeology, he explains. Its also exciting to use geographical scan data of entire digs to replicate in 3D at reduced scale, and get a very tangible idea of how these fossils are retrieved.

Ricketts 3D printed jaw and partial skull from ancient fossils.

Ricketts brought his personal 3D printer to the anthropology departments material cultures lab.

Universities need proof-of-concept to invest in new technology, he says. Experimenting with more durable materials like nylon, wood, and metallic composite filaments will help make the case for useable 3D printed models which will last for more than one semester in the classroom, and make the grant writing process easier.

Ricketts has digitally reconstructed thepartial skullandjawand posted the files on Thingiverse for anyone to download and print. He plans to digitally combine the hand and feet bones into one dual-extruded printable piece in the future.

Ricketts 3D printed hand from ancient fossil.

Ricketts 3D printed foot from ancient fossil.

The passion Ricketts brings to the classroom for this particular application for 3D printing is apparent and contagious in this local news interview about this exciting fossil find.

3D scanning and printing has played a role in Ricketts own continuing education as well. While researching his Masters in Forensic Anthropology at Boston University School of Medicine, Ricketts indulged his strong affinity for fetal osteology by scanning and printing several fetal specimens. These models can be found on hisEtsypage, which helps to offset costs of materials for the classroom.

The future for 3D printing at the University level is unlimited, says Ricketts. There are no low-cost collections of models to teachfetal osteology in anatomy classes down to the high school level. Even printing a two foot long DNA scan for a genetics class shows an astonishing boost for retention. Anything tactile, students remember it better.

3D printing in schools is the most exciting application I can think of. When the next generation looks around the world and imagines a better way to accomplish tasks, they will say, Ill just make it and print it. Of course. Ive been doing that since grade school. Thats when real innovation happens. Kudos to all educators taking the plunge into this technology. If youre an educator wanting to get involved, MatterHackers is here to help witheducation discountshelpful how-tos, and friendly advice. Call us anytime!

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3D stereolithography (SLA) printer principles

This page describes basic principles of a 3D stereolithography printer. Im using a LCD SLA printer (

Basic principle of a 3D stereolithography apparatus (SLA) printer

A photosensitive suspension (photopolymer resin) is exposed by light (of certain wavelength) so it cures. The exposure pattern for each 3D slice is defined by a 2D photo mask (ultraviolet (UV)laser,UVlight projector/DLPorLCD). After a layer is photocured, the Z axis moves up for the next layer of the 3D object. AnFEP filmclamped against the glass is used as the release layer.

There exist three common photo mask and light source combinations:

The type of photopolymer resin used (visible-light-curingorultraviolet (UV)-curing) has to match the type of photo mask and light source combination.

Photoinitiatorsare small molecules that are sensitive to light. Upon light absorption they undergo photochemical cleavage to produce reactive species (either free radicals or a Bronsted or Lewis acid) that will interact with the active components in formulations. In other words, one could say that photoinitiators take the energy from light and transform it into chemical energy to induce chemical reactions. This process where a liquid formulation is transformed into a cross-linked polymer induced by a photoinitiator and its reaction with light is calledphotopolymerization(also known as radiation curing).

There are 2 classes of photoinitiators: Type I and Type II

Type I photoinitiators are those that undergo unimolecular bond cleavage after absorption of light to render the reactive species. No other species are necessary in order for these photoinitiators to work.

Type II photoinitiators undergo a bimolecular reaction. After absorption of light, the photoinitiator reaches excited state from which reacts with another molecule (co-initiator or synergist) to create the reactive species.

Regardless of the photoinitiator used and for a successful cure, it is extremely important that the absorption bands of the photoinitiator will overlap with the emission spectrum of the light source used for curing. Also, there should be minimum competition for light absorption from other species in the formulation. A poor match between absorption bands and light emitted by the source will result in a poor cure or no cure at all.

Free radical photoinitiatorsare used in the photopolymerization of acrylate or styrene based resins.

Cationic photoinitiatorsare used to initiate the photopolymerization of epoxy resins.

BAPO: Bis-Acyl-Phosphine Oxide, IRGACURE® 819, Maximum peak adsorption 371, 400 nm, CAS 162881-26-7

-TMDPO: 2,4,6-Trimethyl benzoyl diphenyl phosphine oxide, Maximum peak adsorption 368, 382, 397 nm, CAS 75980-60-8

SLA LCD printer (Proniks KLD-LCD1260 / YHD-101, approx. 500 EUR)

printer G-codes (Sprinter firmware):

Tensile Strength: 10100 PSI, 4% Elongation

Store in a tightly closed,in dark at 20- 25 degre celcius

Shelf-life is 15 months from receipt

RasperryPI HDMI config (/boot/config.txt):

hdmi_timings=1440 0 16 16 64 2560 0 5 2 1 0 0 0 50 0 176947200 3

Visible-Light-Curing Resin (Three Bond Technical News, Issued July 1, 1995, 45)

Visible-Light-Curing Resin (Three Bond Technical News, Issued July 1, 1995 44)

OpenSLA Build Your Own SLA Resin 3D Printer

4 thoughts on 3D stereolithography (SLA) printer principles

I used your settings in the config.txt. However the screen is portrait, not landscape. Any ideas?

1. Display_rotate =1 (screen not fully function)

2. I tried to swap 14402560 in NanoDLP projector settings, but still portrait.

3. I tried to change LCD timing (seems doesnt help)

I think the screen is portrait not landscape in default. Do you have any idea to make it landscape?

I just order from web this printer. Please let me know what is a good resin for a jeweller like me to be able to do casting with the method of lost wax ?

Could you post what exposure times you are using for your resins? Thanks!

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Build Your Own SLA/DLP 3D Printer with 3D Printed Parts

Build Your Own SLA/DLP 3D Printer with 3D Printed Parts

A maker named Aldric Ngrier has designed and built several 3D printers, many of which he hasshared on Instructables.

Their latest is theRooBee One, an aluminum-frame SLA-DLP printer named for its bright red color. The design is based on two other open source machines: the Cristelia LCD SLA 3D printer and the Vulcanus MAX, and you can build it yourself with some 3D printed parts and inexpensive hardware.

The files for the 3D printed parts (12 total) are available onThingiverse, and the Instructable lists the off-the-shelf hardware needed to complete the build. The frame of the printer is built from 20 x 20 mm aluminum profiles connected by M5 screws and nuts, with 32 3D printed corners to steady it. The resin vat can be constructed from plexiglas, with a print bed built from a 5mm aluminum sheet.

Detailed instructions take you step by step through the construction of the Z axis, an adjustable pan and tilt system, projector fixation components, and other structural elements, many of them 3D printed. The printers electronics include anArduino Mega, aRAMPS 1.4 shield, a micro stepping driver, aNEMA 17 stepper motor, an endstop and a 12V transformer. A diagram illustrates how to wire them together and attach them to the printer. Ngrier uses an Acer DLP projector, which provides an adjustable build area ranging from 80 x 60 x 200 mm to 150 x 105 x 200 mm.

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DIY DLP SLA 3D Printer a buddy and I built

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ImageDIY DLP SLA 3D Printer a buddy and I built(imgur.com)

submitted2 years agobyPanaetius

16 points17 points18 points2 years ago(4 children)

Really awesome printer! How long did it take to build and how expensive was it?

[S]14 points15 points16 points2 years ago*(3 children)

Well, 1.5 days to put together, but 3 days driving to various hardware stores to get various small bits and bobs that we needed. We started putting everything together last friday, and continued building it on sunday, playing some pinball and having a beer or two in between, plus generally goofing off with the UV laser and resin (which we plan on using to glue larger models together, with regular resin as glue). The post-cure box should only take around 2 hours to build, but we have to buy a suitable power supply before we can get started on that.

Total cost is somewhere between 1000 and 1500$.

Extruded Frame (cut) with screws and connectors: 300$

Arduino: No clue, had it laying around, probably 50$

Various other stuff like the build plate, aluminium rods that attach the bed to the z-axis, screws, cables, salt for the fish tank, power supply (12v, 5A), plus some tools we were lacking: Ive lost count, my best guess is somewhere around 100-300$

10m UV LED Strip (for post cure box, which we still have to build): 25$

That said, I live in a really expensive country, so YMMV

I was amazed at how quickly we were able to put it together, with nothing going catastrophically wrong. Building our Prusa i2 took way longer (heck, that one took almost a day to get the firmware to work). I think the experience we gathered from the prusa helped, but most of it comes down to very little fiddly bits, so less stuff that can go wrong.

2 points3 points4 points2 years ago(2 children)

Thank you for the informative reply! It sounds like you had fun creating this thing. I hope it turns out the way you like.

Also if its not to much so ask, I would love to see some finished prints from the printer.

[S]5 points6 points7 points2 years ago(0 children)

Yeah it was a lot of fun, especially since Ive never really built anything this size from scratch, so it was fun seeing my original plan turn into an actual thing (basically the same reason I got into 3D printing).

Sure, Ill gladly post pictures of finished prints, but since both me and my friend have busy schedules (and the printer is at his place), I literally had to leave yesterday after we got the first print done and we probably wont be able to work on it until next weekend. But Ill keep you posted when we do some more prints.

[S]0 points1 point2 points2 years ago(0 children)

Ok we did some more printing today and its working good so far (no more bed-leveling :D). So heres a small (not really, sorry, I tend to get carried away when writing stuff) update with some pictures.

My 10 year old laptop that we use for printing decided that it really didnt want to output 1920×1080 anymore, so we had to go to 1600×1200 (the next lower mode it supports), but the software doesnt really deal well with non-square pixels, so thefirst printcame out skewed (i.e. the software still assumed the pixels were square). That print also picked up some gunk that was floating around in the resin from a failed attempt (when the projector/laptop failed), which accounts for the bits and bobs attached to it, as well as some place where the supports attached to that need to be cleaned up better. Theres also some Z-Wobble that can be seen, so we need to add some guides to get rid of that.

TheCTRL-V test printturned out quite good (this time scaled in one dimension in the software to account for the skew), we decided to print it tilted to see how that improves the way flat surfaces come out(large flat surfaces tend to get a bulge, likely due to surface tension), so the lines you can see are the individual layers. Also, the FunToDo standard resin is really bendy when it comes out of the printer (and its still quite rubbery after post-curing some more), so that makes it difficult to remove prints without bending them. You can see the bend from removing it quite clearly along the squiggly line. Once we install a wiper, the surfaces bulges shouldnt be a problem anymore. The software had some errors on the last 5 layers or so, so the top-right wasnt completely finished (you can see it on the overhang), were not sure exactly what the cause was. Other than that the details turned out pretty nicely.

Im quite proud of theOctopus, at 50% scale its one of the best prints yet. Its bottom isnt perfectly flat, due to bending when removing it from the build plate and were probably overcuring the resin a bit when printing (too high cure times means layers below the current one get cured as well), but given how many tries we needed on our FDm printer with ABS to get it right and how this one looks on the first try, were really happy with it.

We also build the post-cure box, but I forgot to take pictures of it (just a cardboard box with a long UV LED strip glued to the walls, with some tin foil for more reflectivity). It works pretty well, especially considering that it only cost 25$ to make.

Next steps, well be replacing my old laptop with an ODroid with touch screen, to make the printer completely standalone (we already got the ODroid but the WiFi didnt want to work), and well install a rudimentary temporary wiper (just using a spare servo I had lying around) until we design a more permanent solution. And replacing the FunToDo Standard resin with a different, hopefully more stiff resin, well probably try the MakerJuice G+ or FunToDo Industrial strength.

We still need to fine tune some more variables (like exposure time), but Im pretty happy with how it works. And compared to our Prusa i2, its just way easier to work with. The bed doesnt need to be level, the distance of the bed to the resin surface doesnt need to be accuracte (+- 0.2mm is more than sufficient), and cleanup between prints consists of lowering the build plate below the resin a bit, scraping over it to get rid of any saltwater bubbles that stick to the build plate when the previous print was raised, and raising the build platform again to the printing position, basically by eyeballing it. Calibration of the projector takes literally 5 seconds and the built-in projector calibration image is dark enough so as to not cure the resin. So the thing Im most stoked about is how easy it is to work with compared to our FDM printer.

[S]3 points4 points5 points2 years ago*(0 children)

Video of the first printsorry for it being vertical, kinda hard holding my phone sideways with one hand (the other is on the shut down everything button).

Still got lots of stuff to optimize, increasing speeds for better print speed, adding a wiper and some other ideas we want to look into.

Resin used is FunToDo Standard resin (around 50$/l, didnt get around to testing MakerJuice resins so far), xyz resolution is 0.1mm, at that resolution the build volume is 19.2 x 10.8 x 30cm. The resin layer on top of the salt water is about 1cm thick, so about 0.6l of resin (around 30$).

4 points5 points6 points2 years ago(1 child)

i would love to build something like this, do you have any plans or code available?

[S]5 points6 points7 points2 years ago*(0 children)

Heresthe plan/blueprint for the frame, though we had to move some stuff around since the z-axis had more depth than anticipated (the seller didnt have a data sheet, so I went with a guesstimate), so the fish tank didnt fit in the original configuration. Mainly this involved changing the position of two bottom connector angles (no clue what theyre called in english) so the fish tank fits in between. We also got rid of one extruded profile between the projector mount profile and the frame, again for the same reason.

If I had to do it again, Id make the whole frame 10-15cm wider, so everything fits nicely.

As for electronics, theres nice guides out there for the stepper motor – EasyDriver – arduino connection and for hooking up a servo to the arduino.

Modified Marlin firmware, basically getting rid of/deactivating everything except for the z-axis. Its set up for the stepper motor connected to the arduino pins 8 and 9 (I forgot which one is which, if it doesnt work just flip them) and pin 11 for the servo motor for the shutter, iirc. The shutter itself is just hot-glued to the side of the projector, and the shutter is a stick (think chopstick) with a piece of cardboard glued to it, with a piece of black cloth glued on top to absorb light from the beamer.

Other than that, I can recommend theBuild Your Own SLA forums, which contain a ton of information.

Oh and in Creation Workshop you need to addM280 P0 S120to the pre slice GCode (to open the shutter) andM280 P0 S15to the start of the Lift GCode (to close the shutter), substituting whatever angles are correct for your servo/shutter for the 120 and 15 numbers.

2 points3 points4 points2 years ago(2 children)

Is the resin smelly? Does having a vat of resin just sitting out make a lot of fumes?

[S]2 points3 points4 points2 years ago*(0 children)

You cant smell it unless you directly put your nose over it, sitting 50cm away from it I havent noticed any smell.

The only time I noticed a smell while testing the printer was when cleaning the model in alcohol, i.e. the alcohol smells a lot stronger than the resin does.

You can sometimes see a small bit of fume when the projector light cures the resin, which is probably due to heat released by the resin when its curing (which is exothermic). Happens mainly on the first 3 layers, which have a higher curing time to ensure prints sticking to the platform.

Though its still advisable to open a window while printing to get some air circulation.

1 point2 points3 points2 years ago(0 children)

Its also very bad for you, skin contact specifically.

PowerSpec i31 point2 points3 points2 years ago(0 children)

This is really cool. Building a DLP SLA printer is on my list of things to do in the near future (like this summer)

[][deleted]2 points3 points4 points2 years ago(0 children)

Oh man I love 8020 stuff. Was using it for projects before getting into 3d-printing. Not at ALL surprised to see it used for printers themselves!

[][deleted]0 points1 point2 points2 years ago(1 child)

Not bad! Been a while since Ive been on the buildyourownsla website 🙂

Plan on doing a LittleRP thing and kickstarting it?

[S]1 point2 points3 points2 years ago(0 children)

No, sorry, this is a purely personal project and we have no plans of a commercial release or anything.

Besides, theres enough commercial SLA printers coming out/already out at the moment, ours doesnt bring anything new or exciting to the table, so there wouldnt really be a point in selling it.

0 points1 point2 points2 years ago(2 children)

So, I tried to search and find out how dlp sla printing worked but there surprisingly few good descriptions.

Anyone willing to write up a quick explanation for how it works?

[S]2 points3 points4 points2 years ago*(1 child)

DLP stands for Digital Light Processing, which is the name of a specific kind of projector technology (the other major one being LCD based projectors).

Basically, you slice the object into layers like you would on a regular FDM printer, but you slice them as images, white where the model is at and black where theres empty air,like this. Then you use a 2d projector to shine that image onto the surface of a photocurable (usually UV sensitive) resin. The white part gets cured (i.e. hard), the black part stays liquid. Then you move the build platform away from the resin surface by 1 layer height so new liquid resin flows in, load up the image of the next layer and repeat the process.

top-down(which is what our printer is using), where the projector shines from the top down onto the surface of the resin, and with the build plate getting lowered as the print progressed, with the model sitting on top of the build plate

bottom-up, where the resin in in a tank with a transparent bottom and the projector shines from the bottom up, through the transparent floor, with the build plate moving up and the model sticking to the bottom of the build plate, so the model is beneath the build plate (think upside-down makerbot)

The main difference on DLP SLA as opposed to laser based SLA (like in the Form 1) is that whereas the laser traces a line similar to regular FDm printers, with a DLP printer you print a whole layer (2d image) at a time. This also means print speeds only depends on the z-height of the model and the x-y size of the model doesnt matter (as long as it fits the build volume). Or in other words, printing two 5x5cm objects side by side takes the same amount of time as printing a single one of them.

Oh and the reason that DLP projectors are used is that they output UV light with little to no modifications (for instance our projector works out of the box without any modifications, which is the main reason we chose that model), whereas LCD projectors dont output any UV usually and need to be heavily modified (e.g. putting in a UV light source, among other things).

0 points1 point2 points2 years ago(0 children)

This is an awesome description, and one I wasnt able to find.

0 points1 point2 points2 years ago(4 children)

Nice printer!! where abouts in Switzerland are you??

[S]0 points1 point2 points2 years ago(3 children)

0 points1 point2 points2 years ago(2 children)

Im a Swiss living in sydney Australia, would recognise the 20 rappen anywhere!!

[S]0 points1 point2 points2 years ago(1 child)

Ah, I was wondering if anyone would recognize it, not that many swiss people on reddit.

0 points1 point2 points2 years ago(0 children)

Hahaha yeah not many on here!! Ful spass mit dem drucker!!

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Alliance 3D Printing Technology Development (Shanghai) Co., Ltd is a high-tech company professional committed to 3D printing technology. The company originated in 2000 and already has 15 years history in 3D printing technology, is one of the earliest domestic companies doing 3D printing technology. The company has extremely abundant strength background in scientific research, rich experience in case development and high quality of application service support.

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Einstart-L is the first 3D printer that passes the international UL certificate in China. Einstart-L offers fully enclosed and larger chassis print platform, satisfying the 3D printing needs for most people. Besides, it has the advantages of high accurate 3D printing effect, easy operating touch screen, unique design of appearance and online database, greatly increasing the pleasant feeling of users.

Einstart-L got the UL safety certificate

The first desktop 3D printer that got UL satety certificate in China

Fully enclosed print platform is more suitable for using at office, more quiet and secure

Dimensions: 442*497*489mm / Bulid volume: 310*220*200mm; Space forming ratio up to 12%!

3.5 LCD color touch screen, models can be showed on the screen directly

Continue to print automatically even if meeting the power off

PLA printing material, no harm to the environment.

Download 3D printable models for free

Shining 3D offer the latest rapid prototyping and 3D printing technologies to help customers realize product in 3D. One-stop solution Comprehensive process Industry-leading small batch rapid manufacturing technology

With 3D digital equipment ,3D digital software, 3D printer , kinds of CAD/CAM/CAE software , 3D scanning detection system ,3D printing and manufacturing equipment , advanced laser system, engineering training center in college is extended to an integrated platform and provide experimental support for digital research & development of products ,and machini…

Designer want to make a lotus shape coasters. When there is no exsiting prototype or 3D data of Lotus, here comes to the problem. How to make a real lotus coaster?

Combined the EinScan-S 3D scanner with the 3D printer, you can bring your ideas into life in easiest way.

Softwares& AccessoriesFor Personalized 2D/3D

Softwares& AccessoriesReverse Engineering

AddressNo. 1398, Xiangbin Road, Wenyan, Xiaoshan, Hangzhou, Zhejiang, China

Formlabs Form 2 SLA 3D Printer Complete Package

MEET THE LEADING DESKTOP SLA 3D PRINTER Create rugged engineering prototypes, intricate artwork, or complex, watertight structures. The Form 2 is your teams tool to innovate. Elevate initial ideas with low-risk concept explorations that look like real products. From CAD to physical object in no time, rapidly develop, evaluate, and iterate a range of designs in-house. WHATS INCLUDED Form 2 Bundle Includes: Form 2 SLA Printer and finishing kit. System comes equipped with 1 build platform, 1 resin tank, 1 Standard Clear Resin Cartridge, and one (1) year RTD warranty. FEATURES BIGGER PRINTS, INCREDIBLE RESOLUTION With a 40% bigger build volume, and a 50% more powerful laser guided by custom precision optics, the Form 2 is capable of large prints with spectacular detail. Laser-sharp prints with stunning surface finishes. IMPROVED PRINT PROCESS The Form 2s new slide peel mechanism and heated resin tank creates a reliable process for a range of prints: from solid parts to intricate details. LEVEL SENSING Ensures your tank is automatically filled during printing, no more pausing for manual top ups. AUTOMATED RESIN SYSTEM The Form 2s new resin system automatically dispenses materials based on the size of your prints. This means you can print big parts without pausing for refills. CONNECTED PRINTING The Form 2 comes with wireless connectivity and a touchscreen display. Now you can upload over wifi, manage your queue, and receive notifications when your prints complete.Auto-orient for optimal print position, Auto-mesh repair

Auto-generation of supports, Rotation, scaling and duplication

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da Vinci mini 3D Wireless Printer – 6x 6×6 Built Volume (Includes 300g PLA Filament, Maintenance Tools, Print Bed Tape, 3D Filles Access, 3D Design CAD Software)

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For Arduino Professional 3D printer CNC Kit,Longruner GRBL CNC Shield +UNO R3 Board+RAMPS 1.4 Mechanical Switch Endstop+DRV8825 A4988 GRBL Stepper Motor Driver with heat sink+Nema 17 Stepper Motor

Wanhao Duplicator 7 UV Resin 3D Printer (D7) Version 1.4

JGAURORA 3d Printer Prusa i3 DIY 3d Printers kit Self Assembly Metal Frame LCD Display ABS PLA filament 1.75mm

Polymaker PolyBox 3D Printer Filament Storage, Keeping the Filaments Dry during the Printing

The Liquid Crystal 10 SLA

Your one stop UK shop for 3D printers and 3D printer filament

From:838.80(699.00+139.80VAT)

The affordable LCD SLA 3D printer by Photocentric for printing high resolution 3D prints at a fraction of the cost of conventional DLP printers

Photocentric have developed a low cost SLA / DLP 3D printer that uses LCD light rather than laser light to cure daylight curable resins to make highly detailed 3D prints, All the quality of an SLA 3D printer with half the cost.Stereolithographic printersuse light to cure resin in layers building up a 3D design, they have a greater resolution that traditional FDM 3D printers and are more suited for fine work.

Firstly, the main thing to note about the Liquid Crystal 10 is that rather than using laser light it uses high resolution LCD screen with specially formulated daylight polymers. This fact means that the hardware used in the manufacture of the printer is cheaper than conventional SLA printers, this lower cost is reflected in the low cost of this SLA printer at half the price of laser SLAs. This means that whether you are a designer, engineer or artist you can produce high resolution 3D prints at a fraction of the cost.

The Liquid crystal uses daylight resins that are currently available in 3 forms, Firm, Flexible and Hard formulations.

So no matter what the job their is a resin that can fit its needs. Daylight resins come in 5 colours: Cream, Green, Grey, Red flexible is currently only available in Amber of Black.

In fact the revolutionary Liquid Crystal 10 is so good that it won the IDTechEX Europe 2016 Best Development in 3D printing award. Frank Copper, one of the Judges said:

My vote definitely goes to the Photocentric Ltd Liquid Crystal entry which shows a lot of novel new ideas and application potential. Its potential for large format high resolution yet low cost printing is extremely exciting indeed.

Photocentric themselves have also one the Queens award for Enterprise and Innovation 2016.

Maximum creation size: 20 x 10 x 20 cm

Compatible material: imagepac3d Daylight Photopolymer Resin, water washable

Speed @ 0.1mm: 20 sec/layer + 8 sec mechanical

Description: Creation Workshop (1 year license included)

System Requirements: Windows or Linux (Software is not compatible with MAC), 4GB+ Ram, Dual video Output graphics card.

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TheZotrax M200is now available from iDig3Dprinting!

Zortrax 3D printers are renown forbuild quality,precision 3D printingandhigh repeatabilityof prints.

There are a wide range ofZortrax filamentsto use with the Zortrax M200 inluding the PC-ABS compositeZ-ULTRAT.

Was having problems calibrating my printer until I contacted iDig3DPrinting. They responded quickly and provided great technical documentation that I couldnt find anywhere else. Thanks!!

Fantastic service. Goods received within 24 hours of placing order. Will be purchasing more stuff. Would definitely recommend.

Great service, very quick to answer queries and resolve any problems. Reliable and affordable.

First class service and support, purchased some spare parts for my printer and they were glad to help with an unrelated problem I was having with the printer, even though it was not supplied by iDig , I would recommend them without hesitation.

Have had a lot a of problems setting up a 3d printer at our school, idig3d printing contacted me through a forum and have been brilliant ,giving advice and guidance. Thank you

The Streamlined Sx2 Simple SLA DLP Resin 3D Printer with IKEA Enclosure is Here

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The Voice of 3D Printing / Additive Manufacturing

3D Printing for Prototyping and Production – October 2017

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Advanced Design for 3D Printing – June 2017

Beginner Design for 3D Printing – April 2017

Advanced Design for 3D Printing – April 2017

The Streamlined Sx2 Simple SLA DLP Resin 3D Printer with IKEA Enclosure is Here

byBridget Butler MillsapsFeb 24, 20153D Printers3D Printing

While its been been said that direct light processing (DLP) 3D printers are the technology to watch for as the next best thing for hobbyists and anyone looking to 3D print with higher resolution and superior speed, theres one thing holding most back: cost.

As 3D printers are coming down in price, so has most everything else. And if you invest a lot of time in 3D printing, most likely you are constantly looking for better speed coupled with higher quality. With equipment and materials that are still cost-prohibitive, what we often see is that the making community finds ingenious ways around that as they are motivated for speed, quality, and a variety of different results in 3D printing.

Eschewing the hassle of plastic filament by using resin instead, DLP 3D printers do not extrude in the traditional sense. The DLP 3D printer uses a projector that beams onto a light layer of resin, curing it expediently.

The DLP is attractive and attention-getting in that it is fast and is able to produce finer details in 3D models. And asBazzzuses in his Sx2 Simple SLA DLP resin 3D printer, the top-down approach can be a good fit for the DIYer as it allows for a more simple and affordable design, with files availablehere.

Bazzz (Bas Molkenboer), aThingiverseuser from the Netherlands, brings us some Scandinavian style fromIKEAcombined with the streamlining of the up-down DLP 3D printer and a fairly simple list of DIY ingredients.

He purchased an expensive projector locally and recommends using one with at least 2000 lumens. For even shorter curing time, he removed the UV filter. Its crucial to measure how sharp an image your projector can produce while enclosed, with his at 27 cm. After careful measuring and attaching the projector to a piece of wood, Bazzz simply hinged it to a small IKEA cabinet.

With exposure times at roughly six seconds, Bazzz usedMakerJuice SubG+ Resin, in green, with the following:

All the .stl files youll need to produce the printer are provided, with the advice that you will need to remember to print both the rod mount and the z-coupler in duplicate. The electronics are fairly straightforward also since you can use any standard RepRap board. Bazzz used a standard sanguinololu with just 1 stepper driver and 1 endstop which is located all the way to the top to function as emergency stop

No expensive lenses or surface mirrors needed but still great print quality! says Bazzz, regarding his end product, which is encouraging regarding expense.

Bazzz usedCreation Workshopsoftware, which was created and released on Thingiverse by PacManFan (Steve Hernandez), including a helpful manual. PacManFan is another DLP enthusiast and maker whose projects are worth taking a look at as well.

With speed and resolution exceeding other 3D printers, the cost of purchasing DLP machines as well as using the resin is what usually causes 3D printing enthusiasts to shake their heads and go in another direction. Bazzz was able to build his printer around an Infocus IN2104 1024768 projector with only 1800 lumens, and recommends even better results with higher lumens.

While theres no exact breakdown or figure on what your costs might be in comparison to other types of 3D printers, with the top-down design, you may find that the simple construction outweighs cost of resin.

Affordability has been the challenge with 3D printing technology as a whole from inception, but thanks to an extremely dedicated and persistent community of makers worldwide, popularity and curiousity in 3D printing has created an international industry that has bred competition in the marketplace and a lot of more affordable equipment and material to choose from.

The DIY and making community, forever rebelling against limitations such as restrictive cost and availability, is populated by many tinkerers and hackers who are willing to take the time to experiment and build their own machines that often work at a better pace and provide higher quality at a fraction of the price. Weve seen this with other 3D printers, peripherals, and a number of 3D scanners produced by DIYers as well.

We had the chance to catch up with Bazz, after having written this piece, to ask him a few questions about his creation and himself in general.  You can see the entire interview below:

What gave you the idea to create this 3D printer?

Bazz:Seeing all those nice SLA printers on Kickstarter but being still frustrated with their high prices and long delivery times, I started to search around the internet and the open source communities to find out how they work. With a bit of effort you can find some details of people who have build a DIY SLA-DLP machine before but most of the time they simply show just one print and dont give a lot of extra information. I learned that top-down printing with resin is possible and I found a supplier of those resins (makerjuice subG+)nearby in Belgium, mfor €62 a litre. Next thing to do was buy a second hand beamer and simply start discovering!

3DPrint.com:How did you go about designing it?

Bazz:I started with some parts I found on Thingiverse and printed them on my Prusa i2, but quickly discovered that they did the job but were quite large to print and it was difficult to assemble everything. as some mounting holes werent reachable. But they were good enough for a functional prototype. Without even opening my beamer I was able to print some parts. It took around 10 tests before my prints where sized correctly, and I understood how the exposure times needed to be tweaked. Then I started to scale down my prints to prove its accurate. I can print 14mm high rooks with functional stairs.

3DPrint.com:Overall how does this 3D printer operate?

Bazz:The beamer projects the first slice of the model into the resin which adheres to the platform. Because I use an old beamer I have to expose for 16 seconds and then the platform dips into the resin for 3mm and then comes up 2.9mm which gives me a 100 micron z-resolution. During this dipping the beamer goes black. This process is repeated until your model is printed a 50mm high model gives you 500 layers which will take 500*(16 seconds for exposure + 3 seconds for dipping)=9500 seconds = 158 minutes = 2hours and 38 minutes. This will give you a print speed of around 30 minutes per 10mm. With a brand new beamer you can go down to 6 seconds of exposure or even less to really speed up the process. But dont forget with SLA-DLP it doesnt matter for the printing speed how many different objects you put on your platform. It is the z-height which defines the printing time. Printing4 tiny chess setstakes less time on my SLA-DLP machine than printing the enclosure for it on my FDM Prusa i2!

3DPrint.com:What other electronic devices does this 3D printer use to operate?

Bazz:Standard sanguinololu v1.3a with just one pololu driver and one endstop. Actually every reprap electronics would do.

3DPrint.com:Could you provide some additional specifications on this printer?

Bazz:The specs depend greatly on the beamer you use but mine prints with 100 micron layers and the platform is 153x115mm wide. The beamer has an 1024769 resolution which gives you a resolution of roughly 7pixel/mm. A nice HD beamer would be a really nice upgrade to improve this!

3DPrint.com:Do you plan on selling it, and if so for how much?

Bazz:Maybe. I gave a workshop in alocal hackerspaceand there were more people interested in building a Prusa i3 than a SLA-DLP resin printer. People have to discover this technique and find out that it is really affordable! It is great for miniature figures or jewelry! For that workshop, I charged a hacker space friendly fee of €200 for every kit (excluding beamer). That included all of the electronics and mechanical parts, IKEA cabinet and the first 0.5 liter of resin.

3DPrint.com:Tell us a little bit about yourself.

Bazz:I am a 25 year old electrical engineer by origin. Right now I am graduating in business engineering. I started in 2011 with building my first RepRap 3d printer and in between studies I have sold quite a lot of RepRap kits and gave workshops. I have also done some projects in supporting artist with 3D printing knowledge and/or building/converting their 3D printer so that they could produce their unique ideas (for example,Erick Larenbeek, for his mycelium chair. It is printed on a Mendelmax that I built and for a newer version I have written a Cura plug-in so that he can print mycelium and PLA at the same time with a dual head.

Is this a design you are interesting in 3D printing? Have you used a DLP 3D printer previously, and if so, what are your thoughts on the quality and costs associated with the technology? Tell us your thoughts in theSx2 Simple SLA DLP Resin 3D Printer forumover at 3DPB.com.

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IRIS 3D Printer

Professional Grade SLA LCD 3D Printer

Largest Build Volumein a Desktop SLA – LCD 3D Printer

The WorldsFastestSLA LCD Desktop3D Printer

TheMost AffordableProfessional Grade SLA LCD 3D Printer

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SLASH+ light source is twice as uniform, which enabling even better precision and more detailed printing performance

Select the portions of your model that you want to print in higher or lower resolution.

The most advanced automatic and manual support generation and modification algorithms.

Control multiple printers tethered or wirelessly and run your own printer farm.

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Idea for an sla printer

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Went to an auction and got a box full of PS2 slim parts. Taking a look at the CD in it and noticed that the motor for the laser is a stepper motor. Got to thinking I might make a teeny (not more than 45mm cubed) sla printer using these motors. I already have some UV leds. Anybody have some opinions on this such as:

1. should I forget the leds, use a UV laser instead?

2. should I post my build? last one I did (delta printer), I didnt get lot of feedback.

3. I should be able to get better detail with an sla printer than I do with the solidoodle because of the process behind it, right?

Heres a pic of the stepper motor and the screw drive attached:

The problem with SLA isnt the Z-axis (heck, you could use the Z on a Solidoodle), its either the DLP projector or laser/galvos.

Not sure what you were planning on doing with UV LEDs. Backlighting a projector? They wont be nearly powerful enough.

yes, the Bluelight Printer used same laser as like a Bluray DVD burner and still had to use a special powder that worked with it which is the hugest issue with that type 3D printer. dealing with all the powder (fine dust) need a sealed dust free clean lab environment to blow off excess powder and reclaim it for next use (at least a $3,000 sand blaster cabinet and air tight clean room with micro filter HVAC system) and also maintain printer same way so powder dont get everywhere including your lungs, eyes (same for laser light) and plastic dust can be laid thinner than 0.01mm layers. thats why those printers are over $30k and never will be for home office use/conditions. I researched this lots the past few years. one guy can close to making one and posted info on thingaverse b4 abandoning it for the above reasons he found.

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

yes, the Bluelight Printer used same laser as like a Bluray DVD burner and still had to use a special powder that worked with it which is the hugest issue with that type 3D printer. dealing with all the powder (fine dust) need a sealed dust free clean lab environment to blow off excess powder and reclaim it for next use (at least a $3,000 sand blaster cabinet and air tight clean room with micro filter HVAC system) and also maintain printer same way so powder dont get everywhere including your lungs, eyes (same for laser light) and plastic dust can be laid thinner than 0.01mm layers. thats why those printers are over $30k and never will be for home office use/conditions. I researched this lots the past few years. one guy can close to making one and posted info on thingaverse b4 abandoning it for the above reasons he found.

You are talking about SLS, he is talking about SLA.

The former uses powder, the latter uses resin.

The problem with SLA isnt the Z-axis (heck, you could use the Z on a Solidoodle), its either the DLP projector or laser/galvos.

Not sure what you were planning on doing with UV LEDs. Backlighting a projector? They wont be nearly powerful enough.

I am thinking you can use the motors and screws as the x and y axis and then use a nema17 to move the platform up and down for the z-axis.

This link ( rives.html) is where I got the idea for the UV led. Looks like I could possibly use the optics and base from the IR laser piece of the PS2 system and replace the IR laser diode with a UV laser diode. Then I remembered this article and thought a 10mm led would fit in the same area. As I was tearing the base apart (I got like twelve of them so I figured I would tear one completely down) It uses three mirrors and two lenses to focus the beam.

Real SLA printers dont have X and Y linear axes, for reasons a bit too long to get into here.

Ill say this, LEDs and X/Y axes will get you the quality of prints shown in that article. If thats what youre going for, Im not sure what the advantage is over FDM (which looks WAY better than whats in that article).

Real SLA uses galvos or projectors for a reason. Real SLA does not use LEDs. A laser is not the same thing as an LED. Not even close.

I know the two are different, Tim, thats why I asked if I should just purchase a UV laser. And I understand that the DLP style printers (one kit is being sold by CNC without the projecter) are using the mirrors direct the beam as a digital picture. But I also know that when the dentist uses dental resin he uses UV diode pen light (not a laser) to harden that resin. Also optics have the ability to focus light to a pinpoint. I am just wondering if you could get a similar to fdm result by moving the base with the both the laser and mirror. Pretty much what some people are doing with the laser engraver, like the L-cheapo, being attached to the solidoodle, but I want to be able to do it with resin to produce 3D items.

I may fail, and fail spectacularly, but at least I will have put some effort into it.

One thing that is very possible is that physical movement of the x and y axis could cure the resin unevenly per layer. Which is why I am thinking a very small build space to restrict the time it would take to build each layer.

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