Search found 169 matches

by James
Fri Aug 12, 2016 11:07 am
Forum: Resins
Topic: Resins For Investment Casting
Replies: 57
Views: 125679

Re: Resins For Investment Casting

Interesting. I don't see why the vacuum is needed though. Can you explain this aspect?
by James
Fri Aug 12, 2016 11:00 am
Forum: Electronics
Topic: Controlling SLS galvo, pistons, laser
Replies: 4
Views: 14743

Re: Controlling SLS galvo, pistons, laser

Take a look here, http://reprap.org/wiki/OpenSLS

They used a RAMBo board.
by James
Sat Jun 25, 2016 1:35 pm
Forum: General
Topic: sci-fi sla printers and little more
Replies: 2
Views: 14005

Re: sci-fi sla printers and little more

Nice ideas! :D

One of those already exists! http://www.arcam.com It uses electron beams to do the sintering. :D
by James
Tue Apr 12, 2016 3:10 am
Forum: General
Topic: materialsGIRL
Replies: 5
Views: 21738

Re: materialsGIRL

I had seen the article, however thanks for pointing me to it. I'm always happy to learn of new things 3D printing related.

Thanks too for telling me / us about the ABS like resin from Formlabs. Now that I didn't know about! Very interesting!
by James
Sun Apr 10, 2016 7:42 am
Forum: LittleRP
Topic: Anti-backlash Nut worn out
Replies: 9
Views: 21411

Re: Anti-backlash Nut worn out

Oh! I didn't notice that! And I'm a jeweler too! HAHA! :D

Yes! I too would love to see how this comes out! :D
by James
Sun Apr 10, 2016 7:35 am
Forum: General
Topic: Extending DLP print area for large build volume
Replies: 13
Views: 42599

Re: Extending DLP print area for large build volume

I see I see. I didn't know Netfabb did that. I looked years ago and it wouldn't do anything I wanted it to do. Then, when they came out with the slice commander, it was extremely limited in what one could do with it in the free version. I ended up contacting Steve years ago when he was first develop...
by James
Fri Apr 08, 2016 4:29 pm
Forum: General
Topic: Extending DLP print area for large build volume
Replies: 13
Views: 42599

Re: Extending DLP print area for large build volume

Just reread your post and found, "However, I didn't move the projector for that." So what did you do? Did you move the build tray or swivel a prism or something? Also, I reread your first post too and found, "However, no results yet - software not fully ready yet." Are you coding...
by James
Fri Apr 08, 2016 4:13 pm
Forum: General
Topic: Extending DLP print area for large build volume
Replies: 13
Views: 42599

Re: Extending DLP print area for large build volume

Dang! Nice work! My first thought on problems that could come up were concerning repeatability on the linear moves. Looks like you didn't have a problem with that at all as the boundary looks very good in this regard! What kind of setup did you use for moving the projector? Is it a high dollar setup...
by James
Thu Apr 07, 2016 8:41 pm
Forum: Display Devices
Topic: Kindle screens
Replies: 5
Views: 14699

Re: Kindle screens

When the light arrives at the outer surface of the screen, you'd want it to travel through the plastic or glass face plate and then reflect off the white areas and then start its way back out through the face plate and on up to the lens. For the black areas you'd want a very large percentage of the ...
by James
Thu Apr 07, 2016 4:56 pm
Forum: General
Topic: Extending DLP print area for large build volume
Replies: 13
Views: 42599

Re: Extending DLP print area for large build volume

Woo! Hoo! Sounds like fun! Looking forward to hearing about any results you obtain!