Search found 51 matches

by @A2
Mon Jun 02, 2014 11:00 pm
Forum: Creation Workshop
Topic: Print Cycle in CW
Replies: 5
Views: 11670

Re: Print Cycle in CW

@erenaud:

Tks for the helpful explanation.

PDMS - Cliff vs Waterfall
http://b9creator.com/support/?minglefor ... pic&t=1703
by @A2
Mon Jun 02, 2014 10:11 pm
Forum: Display Devices
Topic: Using a corexy driven laser.
Replies: 5
Views: 13386

Re: Using a corexy driven laser.

There are a few threads addressing this issue, it might be solved, or close to being solved. Atfer Hbot, go to CoreXY. That describe not round circle with Corexy system. I have uploaded EXACTLY my same firmware (repetier), just change that line: #define DRIVE_SYSTEM 0 (from 1 before) and M206 T3 P3/...
by @A2
Sun Jun 01, 2014 9:20 pm
Forum: Resins
Topic: Pigments, layer heights, intensity questions.
Replies: 12
Views: 27160

Re: Pigments, layer heights, intensity questions.

Where do you think the divide is for the quality of the print surface finish based on the contrast ratio? Is there noticeable difference between 10,000:1 vs. 15,000:1, given a 0.10 mm resolution? I'm considering the following two projectors: 1. Acer-h6510bd, Contrast ratio, 10,000:1, http://www.proj...
by @A2
Fri May 30, 2014 4:34 pm
Forum: Creation Workshop
Topic: Print Cycle in CW
Replies: 5
Views: 11670

Re: Print Cycle in CW

To be clear, you are not using the waterfall technique or the tilt vat, is that correct? You want to: 1 slide the vat after photo-polymerization to break the mechanical bond of the object to the PDMS, 2 stop, 3 then lift the Z-axis up 4 mm, 4 pause to allow resin to flow over the PDMS, 5 then slide ...
by @A2
Thu May 29, 2014 6:53 pm
Forum: General
Topic: Painting printed parts.
Replies: 9
Views: 23294

Re: Painting printed parts.

Electroplating ABS prints from Prusa i3 - Problems
http://forums.reprap.org/read.php?1,304620


Video of FDM or DLP/SLA part copper/nickel electroplated.

Metal Plating 3d Printed Plastics by RePliForm Inc.:
https://www.youtube.com/watch?v=d-heV79vRWY
by @A2
Thu May 29, 2014 1:02 am
Forum: Hardware
Topic: First surface mirror, Aluminium, Glass or Acrylic?
Replies: 18
Views: 33844

Re: First surface mirror, Aluminium, Glass or Acrylic?

Excited4DLP: Is there a difference whether if a first surface mirror is bought from a supplier or if it's from a rear projection tv? I want to confirm the proposal of kwilliams38: Rear projection TV are équiped with first face reflective mirror, generaly wide enough to provide many mirrors for many...
by @A2
Wed May 28, 2014 9:46 pm
Forum: Hardware
Topic: First surface mirror, Aluminium, Glass or Acrylic?
Replies: 18
Views: 33844

Re: First surface mirror, Aluminium, Glass or Acrylic?

You're not placing a load on the mirror so probably the only issues are vibration, and heat distortion. I would insulate the mirror from it's mount with double sided adhesive coated cork, and/or foam, with a few perimeter mirror clips if the bond fails. I'm looking for a first surface mirror from a ...
by @A2
Wed May 28, 2014 7:08 pm
Forum: Commerical Machines
Topic: lildlper coming to kickstarter soon
Replies: 4
Views: 14689

Re: lildlper coming to kickstarter soon

That's not I.

SLA Resins:
1. Epoxy.
2. Acrylic.
3. Polyester.
4. Urethane.
5. Photoinitiator.

Polyester resin has styrene in it and will dissolve the styrene in polystyrene, but I think epoxy is OK as long as it doesn't get too hot. I don't know what is in the other resins or the photoinitiator.
by @A2
Tue May 27, 2014 11:38 pm
Forum: Commerical Machines
Topic: lildlper coming to kickstarter soon
Replies: 4
Views: 14689

Re: lildlper coming to kickstarter soon

Found another lil'l SLA printer using a pico projector.

I think these lil'l inexpensive SLA machines are going to become popular some day soon, it'll probably track resin prices.

SLA using a DLP with a bottom feed mechanism
May 6, 2009
https://www.youtube.com/watch?v=Cu5b8y-JGfw
by @A2
Mon May 26, 2014 2:05 am
Forum: Commerical Machines
Topic: lildlper coming to kickstarter soon
Replies: 4
Views: 14689

Re: lildlper coming to kickstarter soon

Here's another lil'l DLP in development.

My DLP design: Reprep Petri
http://forums.reprap.org/read.php?2,353843