Ok this is just the start of what i'm working of making moulds for resin casting. Starting with the offset motor holder on the extruder. Please check it out and let me know if you think this can work. I belive i can make nearly all the printed parts using this and other methods These instructions and Plans are still being worked on. just wanna get some feedback before i get too far ahead. basicly the idea is to print out these sheets stick them to a piece of mdf (with a gluestick). Cut them out. Then line them all up, clamp and pore the resin. To Be Done:- better instructions (including photos) Top Plate for drilling out the semi-circles in the top Drill holes for clamping all the pieces together Pins for holes in the finished mould Try out the mould Compare to on a working machine to make sure it fits https://reprap.org/forum/read.php?4,5413,5413#msg-5413 Fri, 11 Sep 2026 22:35:17 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,5413,5759#msg-5759 https://reprap.org/forum/read.php?4,5413,5759#msg-5759
What works really well is a latex rubber mold, with an exterior "mother mold" of plaster to provide support while the resin hardens. Then you can pull of the plaster supports, and peal off the latex mold to reveal a perfect part (as long as there are no bubbles in the resin). I have produced some excelent reproductions of vintage toy parts using this technique. Somewhere on the internet or at a well-stocked hobby shop you can find detailed instructions on how to make a mold like this.]]> Anonymous User Reprappers Mon, 22 Oct 2007 01:33:20 -0400 https://reprap.org/forum/read.php?4,5413,5670#msg-5670 https://reprap.org/forum/read.php?4,5413,5670#msg-5670
the pic attached is this first part in it's raw form. it is very rough becuase i reused the same mould i used for the plaster attempts which wasn't in the best condition. but this was a proof of concept cast to see if this idea would even work.. the dags haven't been cleaned off it yet and the mould was slightly out of whack and the holes haven't been added. but it shows that it's possible. also the brown discolouration on it is from the laquer not being properly dry...i was in a hurry to see if it would work!!]]> moonspud Reprappers Mon, 15 Oct 2007 04:55:20 -0400 https://reprap.org/forum/read.php?4,5413,5520#msg-5520 https://reprap.org/forum/read.php?4,5413,5520#msg-5520 -------------------------------------------------------
> Feeling extremly stupid, but then again I never
> where any good with 3-d problems...
>
> Which part are you trying to make? are you making
> a negative?
>
> Is it one of the extruder parts on:
> [reprap.org]
>
> ?
it's the motor holder, part B in that pic.
if this works it will come out of the mould a usable part (not quite perfect but good enough to use to print better ones)]]> moonspud Reprappers Mon, 08 Oct 2007 21:34:09 -0400 https://reprap.org/forum/read.php?4,5413,5516#msg-5516 https://reprap.org/forum/read.php?4,5413,5516#msg-5516
Which part are you trying to make? are you making a negative?

Is it one of the extruder parts on:
[reprap.org]

?]]> mimarob Reprappers Mon, 08 Oct 2007 11:15:42 -0400 https://reprap.org/forum/read.php?4,5413,5509#msg-5509 https://reprap.org/forum/read.php?4,5413,5509#msg-5509 moonspud Reprappers Sun, 07 Oct 2007 05:33:38 -0400 https://reprap.org/forum/read.php?4,5413,5420#msg-5420 https://reprap.org/forum/read.php?4,5413,5420#msg-5420
my idea behind these is that anyone around the world can build these without access to the orignal parts using common woodworking tools]]> moonspud Reprappers Tue, 02 Oct 2007 11:39:05 -0400 https://reprap.org/forum/read.php?4,5413,5419#msg-5419 https://reprap.org/forum/read.php?4,5413,5419#msg-5419
also, it seems these moldings would be a good candidate for being lasercut. how are you creating them? if you're using a cad program that creates DXF files, then its super easy.

good luck!]]> ZachHoeken Reprappers Tue, 02 Oct 2007 11:36:49 -0400 https://reprap.org/forum/read.php?4,5413,5414#msg-5414 https://reprap.org/forum/read.php?4,5413,5414#msg-5414 moonspud Reprappers Tue, 02 Oct 2007 08:49:39 -0400 https://reprap.org/forum/read.php?4,5413,5413#msg-5413 https://reprap.org/forum/read.php?4,5413,5413#msg-5413
These instructions and Plans are still being worked on. just wanna get some feedback before i get too far ahead.


basicly the idea is to print out these sheets stick them to a piece of mdf (with a gluestick). Cut them out. Then line them all up, clamp and pore the resin.

To Be Done:-
better instructions (including photos)
Top Plate for drilling out the semi-circles in the top
Drill holes for clamping all the pieces together
Pins for holes in the finished mould
Try out the mould
Compare to on a working machine to make sure it fits]]> moonspud Reprappers Tue, 02 Oct 2007 08:45:22 -0400