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A complete redesign of RichRap's paste extruder. This design will work on a RepRapPro Huxley.
See http://reprap.org/wiki/Mattroberts%27_Huxley_Paste_Extruder for detailed instructions on how to build.
See http://richrap.blogspot.co.uk/2012/04/universal-paste-extruder-ceramic-food.html for hints on how to use.
You probably want to use the replacement x-carriage ( http://www.thingiverse.com/thing:27901 ) to allow for repeated switching of printheads.
Assuming you use a 200 steps/rev motor: steps per mm will be 765. This number is calculated in OpenSCAD - so if you change the gear ratios it will calculate the new value for you.
Huxley Paste Extruder by mattroberts is licensed under the Creative Commons - Attribution license.
So what's this mean?
We're sure mattroberts would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!