|
Whats the max resolution on modern 3d printers now? Previous examples I've seen had fairly rough surface finishes.
|
#
¿
Nov 15, 2010 07:33
|
|
|
|
| # ¿ May 2, 2024 18:35 |
|
|
Twerpling posted:Absurdly good. Objet printers use a process where a very thin photopolymer (light activated polymer of a sort) layers are laid down and then a UV light cures the appropriate areas. The objects that come out are incredibly smooth; usually I can't see any stepping or blocky-ness without a magnifier. The only issue is that the objects are not fully cured when they come out and will droop over time if they are under strain. Oh hey, he used a DLP projector for exposure. I was thinking of doing something similar for exposing pcbs. It seems to be kind of a trade off. This technique gives great resolution. But you are limited to dyed resin. What I really want is something that will let me print fully painted war miniatures. But those sorts of systems were kind of lacking in detail.
|
|
#
¿
Nov 15, 2010 09:09
|
|
|
Verizian posted:Pretty sure Games Workshop switched their plastics production to a rapid prototyping system around 7 years ago and that cost them around £300k. They still Thats kind of what I was figuring. But the lack of resolution would mean having to have some sort of CNC painting system. Which I guess could be done but I can't think of any examples short of cars. Now that I think about it though, the epoxy system might work. You could just blow fine powder into the .1 mm layer and then expose it. Then when the part comes out wash it in a solvent to expose the embedded powders. Ugh, CNC airbrush is sounding easier.
|
|
#
¿
Nov 15, 2010 09:50
|
|
|
Splizwarf posted:I couldn't tell in all that frantic fisheye poo poo but it seemed like there was no Z-axis movement (or provision for it). Did I just miss it? Are they dropping the platform with something unseen instead of moving the gantry up? I think with that sort of setup it would be easier to just have a moving platform for the work.
|
|
#
¿
Nov 27, 2011 06:39
|
|