Universal Paste Extruder for RepRap Hello everyone, I have just posted a blog about a Universal paste extruder It can be used for all sorts of things, Chocolate, Ceramic, silicone, solder paste, food etc. paste_assembled.jpg mod_embed_images_loadimage('2be87f82d3b26d9cf49b98c8c89d9775', '/forum/thumbcache/cbc/3c5/828/b27/e6e/c70/fd4/099/6d2/f14/20_800x400.png', 'http://3.bp.blogspot.com/-1iZ1TzX90wg/T3McbX4qGeI/AAAAAAAABG8/Dbx0kIaCFUY/s640/paste_assembled.jpg', 'https://reprap.org/forum/addon.php?180,module=embed_images,check_scaling=1,url=http%3A%2F%2F3.bp.blogspot.com%2F-1iZ1TzX90wg%2FT3McbX4qGeI%2FAAAAAAAABG8%2FDbx0kIaCFUY%2Fs640%2Fpaste_assembled.jpg', '', 127592, 800, 400, 'Loading image ...', false); All the files are up on thingiverse - And a build video is here - if you want to build one. Along with lots of other videos on my YouTube channel Rich. https://reprap.org/forum/read.php?180,127592,127592#msg-127592 Sat, 11 Jul 2026 17:20:43 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?180,127592,193526#msg-193526 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,193526#msg-193526
I've used google sketchup to add a flange to the side with 4 x 3mm holes that align with the Mendel's X carriage mounting holes. I will post this STL on Thingiverse when I'm happy with it.

As this is my first run through the entire toolchain, drawing package -> slicer -> print this is taking a while.

I started off with slic3r, (latest version) and I was able to create all the gears but my modified body is quite strange. Viewing the slic3r g-code the flange which is about 4mm thick comes up to about layer 38 (.4mm layers).

Using SFACT I can get a printable part with a flange of the correct thickness but it does throw error messages about incomplete triangles up to about layer 38. The various layers look ok and this is very odd as the rest of the body is unchanged and the flange should be 4mm thick.

I tried using the freeware version of netfab to fix the stl, which it did, but resulting, repaired STL file is tiny compared to my original model file?!?!

I tried using cadspan the 'skin' the file but although it seems to be processed correctly I'm still getting warnings about incomplete triangles when SFACT runs.

Also, when the part is printed the holes in the flange come out smaller than in the model file, intended to be 3mm diam, comes out about 1mm.

Any ideas about how best to fix the part?]]> TerryKidd Paste Extrusion Working Group Thu, 21 Mar 2013 05:39:34 -0400 https://reprap.org/forum/read.php?180,127592,189461#msg-189461 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,189461#msg-189461
I guess making an adaptor would not be too difficult, but I'd like to save myself a bit of time.]]> TerryKidd Paste Extrusion Working Group Mon, 04 Mar 2013 07:03:44 -0500 https://reprap.org/forum/read.php?180,127592,153255#msg-153255 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,153255#msg-153255 Scrachbuilder Paste Extrusion Working Group Sun, 09 Sep 2012 00:46:11 -0400 https://reprap.org/forum/read.php?180,127592,133859#msg-133859 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,133859#msg-133859
I've been wondering what was happening with the intriguing Fab@home (paste extruding) style printers which sort of seem to have disappeared. But now, thanks to your innovation it seems that we can have it all with our Reprap style printers! I enjoyed watching your videos as well -so did my 3 year old who is now demanding that we print chocolate bunnies with our Mendel!

Jacqueline
www.singularitymachine.com/blog]]> JLudlow Paste Extrusion Working Group Mon, 21 May 2012 14:11:22 -0400 https://reprap.org/forum/read.php?180,127592,127902#msg-127902 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,127902#msg-127902 I didn't expect to be able to print the frog in Porcelain, but it worked quite well at slow print speeds (12mm/sec). It could be more problematic at higher printing speeds, a little reverse may also help then.

I'm trying finer needles at the moment, then I'll try speeding it all up and see what happens.]]> richrap Paste Extrusion Working Group Sun, 08 Apr 2012 18:36:01 -0400 https://reprap.org/forum/read.php?180,127592,127805#msg-127805 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,127805#msg-127805
Do you reverse the motor at the end of a run? Presumably the belt doesn't allow you to reverse the syringe, just release the pressure. Is that sufficient to stop the flow?]]> nophead Paste Extrusion Working Group Sun, 08 Apr 2012 03:59:20 -0400 https://reprap.org/forum/read.php?180,127592,127776#msg-127776 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,127776#msg-127776 johnrpm Paste Extrusion Working Group Sat, 07 Apr 2012 19:31:55 -0400 https://reprap.org/forum/read.php?180,127592,127620#msg-127620 Re: Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,127620#msg-127620 rhmorrison Paste Extrusion Working Group Fri, 06 Apr 2012 11:21:14 -0400 https://reprap.org/forum/read.php?180,127592,127592#msg-127592 Universal Paste Extruder for RepRap https://reprap.org/forum/read.php?180,127592,127592#msg-127592 Universal paste extruder

It can be used for all sorts of things, Chocolate, Ceramic, silicone, solder paste, food etc.



All the files are up on thingiverse -

And a build video is here - if you want to build one.

Along with lots of other videos on my YouTube channel

Rich.
]]> richrap Paste Extrusion Working Group Fri, 06 Apr 2012 07:15:45 -0400