9
votes
Accepted
How does a UV LCD 3D resin printer work?
I'm surprised your research hasn't answered your question, as the concept is relatively simple. You have most of the answer in the question. The missing item is a light source. Usually the source is ...
- 11.2k
9
votes
Best way to deal with Resin Printers in your living space
One of the options you have would be to create a negative pressure in your working area. This would be accomplished by installing a fan with the flow direction to the outside. The inside portion of ...
- 11.2k
9
votes
Accepted
Cons to UV printing
Taken in order your questions:
Maintenance for a resin printer means keeping the vat or tray clean, using appropriate methods to remove the unused resin (or leaving it in the vat per manufacturer's ...
- 11.2k
7
votes
Accepted
Toxicity of Light-curing resin?
While you probably cannot find an MSDS on the resin for your printer (yet), they are out there for other resin based printers. Here's a generic MSDS on one for Objet RGD515:
It's not a pretty thing.
...
- 2,423
7
votes
Accepted
Best way to deal with Resin Printers in your living space
First things first: Resin is very aggressive. It can very easily make you hypersensitive, even to the fumes of it. So step 1 is easy:
Limit exposure
Wear gloves when working with resin. As you live ...
- 21k
6
votes
Accepted
Why is cupping bad in SLA prints?
The printer prints, then moves up, then down again. The print surface stays inside the resin vat at all times. As a result, we have this experiment:
The "bottle" is resting in a vat of ...
- 21k
6
votes
Aggressive resin solvent
Wear Gloves.
Returning is impossible
Resin does not just harden, it polymerizes into shape from monomers in a chemical reaction. That means to break it down, you need to destroy the whole chemistry. ...
- 21k
6
votes
Accepted
Aggressive resin solvent
Concentrated nitric acid will remove all organics, including your skin, wire insulation, etc. It will work on a glass plate, but the fumes would eventually damage the plastics on your printer unless ...
- 2,218
6
votes
Is it possible to make flat parts less flexible by adding geometry to one side?
Yes. You'll find this all over the place in injection molded parts even even formed metal like disposable buffet serving containers (although there it's visible on both sides), and the same idea works ...
5
votes
Accepted
Safe way of disposing resin
Resin is notoriously hard to handle, especially as exposure to air and light can and will cure it over time. The uncured resin is a hazardous material.
Handling hazardous waste
The rules for safe ...
- 21k
5
votes
Accepted
Is resin 3D printing considered "additive"?
Resin printing (aka stereo lithography) was actually invented before (FFF/FDM) filament extrusion printing. The term 3D printing was more or less created as a generic way to name and describe both ...
- 795
5
votes
Accepted
I painted an uncured UV resin print, now it feels sticky through the paint
Scrap the prints
You didn't cure the print, and your paint might interact with the resin in such a way that it might never cure. The paint also will prevent UV rays from accessing the resin.
With this ...
- 21k
4
votes
Cons to UV printing
Despite how many vendors make it appear, resin-curing SLA/DLP printers are industrial or commercial tools that are really not suitable for home desktop use. Here are the major downsides:
...
- 6,526
4
votes
Accepted
Multiple objects on build plate
You can definitely print full build plates of minis. You just need to find correct settings. If nothing sticks to the build plate - then you should increase bottom exposure time. Also check if the ...
4
votes
Accepted
Adjusting layer exposure time for different layer thicknesses
Based on my experience, cure-time and thickness increase or decrease is not linear and it is mostly curve. For example resin rated for 50 micron 5 s cure time. You should expect:
25 micron - 3.2 s
...
- 479
4
votes
Should I cure my 3D printed resin model before or after sanding down imperfections?
Postprocessing AFTER Curing
Liquid or not fully cured Resin is a skin irritant and should not be handled without gloves. Exposure to it is to be reduced to an absolute minimum.
To make sure you work ...
- 21k
4
votes
Accepted
Is resin printing correct for my needs & limitations?
Resin likes it warm and dark
Resins increase in viscosity at low temperatures, so having low temperatures may have bad effects on the prints. However, Resin also likes it dark, so if your garage has a ...
- 21k
4
votes
Metal coating 3D printed parts (electroless plating)
Good day, I have experience in applying electroless nickel on difficult 3D parts, in your case, it's exceedingly difficult to do it directly to the printed piece. You will need to seal the piece with ...
4
votes
Accepted
How to solve broken FEP
FEPs are consumables
Once an FEP film on the foil has developed cracking, it's a lost cause and has to be replaced in due time - repair to pre-damage conditions is impossible even if you manufacture ...
- 21k
3
votes
Methylated spirits or turpentine to clean resin printer?
I would personally stick to isopropanol. Be aware that 3D printing is a very expensive hobby, but health wise this is a better option. Methylated spirits can quickly become dangerous, and often can ...
- 61
3
votes
Is the Sparkmaker good enough to print OO/HO small detail objects?
I own a Sparkmaker FHD whose X/Y resolution is 57µm. Z resolution (layer height) is up to the user, 25, 50 or 100µm being typical values. I have limited experience with it but the level of detail ...
- 131
3
votes
Accepted
Is the Sparkmaker good enough to print OO/HO small detail objects?
In general, resin printers can provide a level of detail that has to be viewed with a magnification device. The technology used in the printer will limit the resolution of the printed object. Laser ...
- 11.2k
3
votes
Accepted
Can the resin from Resin based 3D printers be used to make printed circuit boards?
Brushed aluminum is a common bed surface for resin based printers. The aspect of the aluminum that is important to the print is the adhesion, hence the roughness of brushed aluminum. It has to be ...
- 11.2k
3
votes
Multiple objects on build plate
Check the plate and be sure that it is level. Also, you need to check that your model is level.
The problem will be in the settings if everything is level.
- 43
3
votes
Accepted
Use SLA 3D printing to make a flexible mold
Background
SLA relies on the properties of UV-curing Resin. Most currently available UV Curing Resins harden to a solid, hard polymer, but that doesn't mean there are no other UV curing resins that ...
- 21k
3
votes
Accepted
Resin types: Water Soluble vs PLA
First of all, let's look at what the filaments are:
PLA & PVA Filaments
Normal PLA and Water-soluble PVA contain for the most part the material on the tin, its precursors, and possibly some ...
- 21k
3
votes
Accepted
SLA printers: food-safe resin parts
Resin basics
Resins are tricky, but probably less tricky than FDM as the manufacturing process is much less likely to include contaminants in the shape of contaminated air, particles, or adding lead ...
- 21k
3
votes
left-over photopolymer resins
Considerations for storing resin include using a light-tight bottle, preventing stray ultraviolet radiation from prematurely curing the resin.
You'll also note that users will filter the resin through ...
- 11.2k
3
votes
How to fix WoW models in photon workshop
I believe you've identified the primary problem with this model. The single surface features are going to interfere with printing this object.
The image above is the result of loading the model into ...
- 11.2k
3
votes
Accepted
How to fix WoW models in photon workshop
First of all, Fred's answer is very well but some more items to note, and a different way to fix them using blender.
After opening blender, deleting the box with ...
- 21k
Only top scored, non community-wiki answers of a minimum length are eligible