Questions tagged [sla]

Questions about the Stereolithography (SLA) method of 3D printing.

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XY Resolution of Form 3 Printer versus Laser Spot Size

According to the Formlabs site, the XY resolution (with the appropriate resin) is 25 microns. However the laser spot diameter is listed as 85 microns. Assuming the 85 microns is FWHM (full width ...
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54 views

Top-Down SLA Printer Bulging Issue

I have designed and built a top-down SLA 3D printer that uses a 405 nm 500 mW laser along with some galvanometers. I filled the vat with glycerin and then topped it off with about 2.5 cm of resin. I ...
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366 views

SLA printers: food-safe resin parts

I've actually read that resin printed parts are not food-safe in Reddit and Formlabs guide. However, it also says that food-safe can be achieved applying some kind of food-safe coat to the printed ...
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2answers
346 views

SLA resin post-processing: gluing parts together

I've recently purchased an Elegoo Mars Pro 3d printer, and I was wondering when printing large pieces that need to be printed in different steps: is there some kind of post-processing to make it more ...
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1answer
61 views

Curated resin size shrink (and methods to reduce it)

I've recently purchased an Elegoo Mars Pro 3D printer. I've read about that percentage of resin shapes going smaller and I understand that. But are slicers (or software which help with the joints) ...
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1answer
125 views

Printing and slicing big pieces with Elegoo Mars (Pro)

I'm pretty new in the 3D printing world, and there are some doubts that have come my way and I've not been able to find anywhere. Usually, I'm going to try to print pieces bigger than the bed of my ...
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1answer
31 views

LCD/DLP resin curing system

I'm trying to develop a device to burn a glass slide surface with a special pattern of UV light (between 300 nm and 360 nm) in a 5 cm square surface. I've read several threads asking questions about ...
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1answer
48 views

Enclosed volumes with stereolithography 3D printers

I have no prior experience with stereolithography 3D printers. For a research application I am considering the SLA approach but I have a more basic question. I would like to use SLA in order to print ...
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1answer
144 views

Use SLA 3D printing to make a flexible mold

I have seen some videos like this one, that uses 3D printing to make a piece that will be used to make a silicone mold that will then be used to make the final object made of some resin. Isn't ...
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126 views

Why is cupping bad in SLA prints?

Why is cupping bad? (I don't mean hollow parts) Example: Lets say that I want to print a simple cup without a handle. There are two obvious orientations: In one orientation it won't require any ...
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46 views

Do SLA printers have open source slicers available to use?

Does anyone know of a (manufacturer independent) software that supports different types of SLA printers? Since there are many different SLA type printers around, I was wondering if there are any ...
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166 views

How to prevent model from peeling off of resin printer buildplate during print?

Recently I have started using a fairly large LCD resin printer. (Yidimu Falcon Pro) It has a fairly large 260x160mm perforated and coated steel build plate and a decent dual rail Z axis with a ...
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65 views

Empty patches with a very viscous resin

I have a Mars-like 3D printer, which so far worked very well with typical resins. Then I decided to print a mechanical part with Siraya Blu. I followed their recomendations of a "heavy" support, which ...
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1answer
193 views

Photon S DLP first layers adhere but support will not

Recently I changed the FEP bottom of my Anycubic Photon S and I'm having problems with prints now. The bottom layer sticks super well, but none of the supports or the prints do. I've tried tensioning ...
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1answer
329 views

SLA printing: piece does not stick to supporting structures

I am trying to print a box shaped object with an ELEGOO Mars SLA printer. I positioned the piece rotating it on X and Y axis 35 and 30 degrees. However, the print fails because the piece does not ...
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127 views

Does it matter what kind of FEP film I use for my SLA printer?

I have a Phrozen Sonic Mini printer, and of course I'm eventually going to need to replace the FEP film on the resin vat. Is there anything I need to take in to consideration when buying some ...
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2answers
66 views

Attach LCD to VAT

I began build LCD printer and I want make some modifications. What if I will place LCD below VAT? Will the display break when printing? what are the risks? I seen a lot of printers and all of them ...
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1answer
1k views

Can you cure resin with sunlight through a window?

If I set my prints on the window sill (indoors) will the sunlight still be able to cure the resin? The problem with setting them outside is the wind knocking them over.
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1answer
2k views

Methylated spirits or turpentine to clean resin printer?

I'm new to 3D printing and have bought a resin printer. Cleaning with Isopropol Alcohol seems to be the rage, however I think this is unaware of cost savings. It appears methylated spirits is ok and ...
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1answer
113 views

Is it possible to attach a laser engraver to a SLA / resin 3D printer?

While trying to figure out if I should start 3D printing with FDM (Creality Ender 3) or with SLA (Elegoo Mars), I got hooked on the bonus feature of attaching a laser upgrade on the 3d printer to make ...
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103 views

New 3D resin printer with a scratched bed - will it work well anyway?

I just received a new SLA printer from AliExpress. There are scratches of different shapes on the bed, as seen on the photo. I am particularly worried about a set of scratches of about 0.2 mm ...
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2answers
415 views

What would cause a SLA printer to print a solid block of resin?

I’ve just brought my printer back out after a month and it’s first print created a solid block of resin about 1.5 cm deep and the full width and length of the print bed. What could cause this? ...
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2answers
386 views

What do I need to go along with my new SLA 3D printer?

I just purchased an Anycubic Photon 3S LCD-based SLA 3D printer. I understand the need for cleaning and curing parts after printing. While the device is in transit, I'm looking to set up a workstation ...
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31 views

Large SLA Build Plate

So I purchased a ready-made z-axis. There are four holes for 6 mm screws. Two pairs of holes are 100 mm apart, with each pair of screw mounts 20 mm apart from each other. Basically, ...
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1answer
169 views

Square sheet in middle layers

I'm using a Tronxy Ultrabot (looks very similar to Anycubic Photon) and I'm still on my first prints. Things that happened thus far: many failed prints that stuck to the resin tank, one which I had to ...
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159 views

Are SLA prints also susceptible to say microbes like FFF prints are with the microscopic flaws?

Say if one were to use foodsafe and or medical grade materials, would (m)SLA print be any less hazardous than one created with FFF printer, being eventually suscectible to bacteria buildup?
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1answer
528 views

What materials would be appropriate for pool parts (chlorine & UV exposure) using SLA or FDM?

I've got a printer on the way later this year that's supposed to be able to do both FDM and SLA (with the appropriate accessories). I'm interested in printing some parts for swimming pools (the types ...
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1answer
966 views

How does a UV LCD 3D resin printer work?

I've been wondering this for a while, and have searched for hours and have found nothing except undetailed explanations and projects. How does a UV LCD 3D resin printer cure resin exactly? I ...
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4k views

Best way to deal with Resin Printers in your living space

I know I did something stupid. I just had to have a SLA 3d printer. The issue being I live in a one bedroom apartment. In the months of owning it I have made lots of amazing pieces, I also for the ...
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2answers
179 views

Sparkmaker SLA resin not curing

My model layers are printing much as I expect but the parts when removed from the plate are very soft and flexible and fail to harden any further in sunlight or UV lamplight. A tall or slender part ...
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1answer
48 views

Gizmo3D SLA + Monocure resins not curing

I am working with a "Gizmo3D" type DLP resin printer, and using Monocure "General Grey" resin. I'm having some issues with getting this resin to cure to the build plate well enough to prevent it from ...
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1answer
2k views

Safe way of disposing resin

I have some leftover resin (100 ml) that I`m not planing to use anymore. What is a safe way of disposing it that doesn't involve curing?
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1k views

Using heat-set inserts with SLA printed part

I have an SLA printed part I want to put a brass threaded insert in using a soldering iron. The insert is slightly larger than the hole so I would assume the edge will melt and re-freeze around the ...
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1answer
11k views

Toxicity of Light-curing resin?

I'm one of the lucky (??) Kickstarter supporters who received a T3D resin printer. This uses a proprietary (so far as I can tell) resin which cures under exposure to visible, rather than the usual UV,...
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177 views

Where or who could I hire to assemble a 3d printer that came in a kit for me? [closed]

I planning on getting a resin 3d printer kit, and I don't want to take any risks building it myself. Where, or who, could I hire a professional capable of constructing a 3D printer kit? They don't ...
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388 views

What kind of galvos are used in Moai SLA printers?

There are some very cheap SLA printers available, working with galvo scanners and 405 nm lasers to expose a fluid resin. I am looking for the galvos which are used in these projects. Does anyone know ...
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3answers
2k views

Which choices do we have on Daylight Resins?

I'm planning to make an LCD Resin printer. I'm still learning and I found out that I need daylight resin (which hardens when white light comes from the LCD). If I search for "Daylight resin" on ...
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1answer
1k views

How to thin UV sensitive resin

I have some older resin that got a bit thick. I was thinking I could use some paint thinner to thin it a bit and restore it. My thoughts are the paint thinner is made of terpene oils so should be ...
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1answer
183 views

How do you know when your SLA resin tray needs to be replaced?

How do you know when your SLA print tray has lost its non-stick coating? Are there visible or testable signs you can use to determine it is time to invest in a new resin tray? Is it best to ...
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4answers
20k views

SLA prints not sticking to build plate

I have been working with our SLA printer (Facture Draken) for a couple weeks now printing in makerjuice waxcast. . I have had some successful prints, but the majority (80%) end up as pancakes stuck ...
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1k views

What is the lifespan of a SLA Resin Tray?

As far as I know resin trays have a Teflon coat that allows prints to stick to the build plate easier than the resin tray but this Teflon coat wears over time. I am new to the SLA scene and am ...
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1answer
194 views

Does the Inverse-Square law apply with SLA Printing?

I was adjusting the position of our projector to allow for bigger prints to be generated. I encountered a problem that at larger distances, our prints are not seeming to adhere as desired. Does ...
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151 views

DIY SLA 3d printer for jewelry [closed]

Where i can find DIY-project or tutorial for creating SLA printer for making models of jewelry?
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345 views

Pros to UV printing

This is related to Cons to UV printing and focused on Ryan Carlyle's answer, mentioning: "...resin-curing SLA/DLP printers are industrial or commercial tools that are really not suitable for home ...
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1answer
273 views

Is there a method or S/W available to stitch together a DLP projector's output into a “moving picture” to SLA print in a larger area than its output?

I'm popping my cherry here, so to speak. Refer to my Hackaday project for system details & pictures: Sciclone 3D Printer Conversion Repurposing a lab-grade liquid handling system to a 3D printer ...
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2answers
4k views

Why is CLIP so much faster than SLA?

Stereolithography produces parts by projecting ultraviolet light on the top of a vat of liquid photopolymer, causing it to harden. CLIP produces parts by projecting ultraviolet light through the ...