The ZPrinter 450 uses powder as a support material. This solves a lot of problems and allows the support material to be reused. Obviously it does require some kind of enclosure to prevent air movement. https://reprap.org/forum/read.php?1,26944,26944#msg-26944 Tue, 16 Jun 2026 08:07:08 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,26944,26983#msg-26983 https://reprap.org/forum/read.php?1,26944,26983#msg-26983 R.J.Bowman General Sun, 30 Aug 2009 17:08:04 -0400 https://reprap.org/forum/read.php?1,26944,26971#msg-26971 https://reprap.org/forum/read.php?1,26944,26971#msg-26971
See the color cartridge? It's just standard HP inkjet color cartridge! (I think they license their technology?)

And I think somehow the inks react with the powder so they forms solid.
But then it's not plastic right? I suspect the strength of those powder formed thing will be much less than ABS.

[www.uprintsource.com] UPrint is also interesting, I think it prints like RepRap. I am not sure how they figure out the support though.]]> sam0737 General Sun, 30 Aug 2009 14:25:19 -0400 https://reprap.org/forum/read.php?1,26944,26945#msg-26945 https://reprap.org/forum/read.php?1,26944,26945#msg-26945
We would have to come up with a formula that can be easily dissolved and some physical strength]]> Grogyan General Sat, 29 Aug 2009 20:53:53 -0400 https://reprap.org/forum/read.php?1,26944,26944#msg-26944 https://reprap.org/forum/read.php?1,26944,26944#msg-26944 ZPrinter 450 uses powder as a support material. This solves a lot of problems and allows the support material to be reused. Obviously it does require some kind of enclosure to prevent air movement.]]> rodzite General Sat, 29 Aug 2009 19:48:25 -0400