Geared Peristaltic Quick-Fit Pump Extruder
by RichRap, published
It's a work in progress, updates will follow, but the basic principle is up-and-running.
This Pump is designed to fit my Quick-Fit X Carriage - thingiverse.com/thing:19590
6-Jan-2013 - Uploaded Sketchup files
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I put a video breakdown on YT - http://www.youtube.com/watch?v...
That's impressive. I was planning on adding some pressure in the system, still not had a chance to do much with it yet. Ceramic would be a nice goal.
With viscous stuff you may need to run larger diameter tubing on the suction side. Also, as you pull higher vacuum you need to run thicker tubing. If you pressure feed it you can get away with much lighter wall tubing and also have less of a problem with long suction lines.
I use peristaltic pumps up to 2.5" bore a lot at work; they are just great! The hose is the only thing that touches so, if you can get a hose that will survive this, you are gold! I've pumped sand slurries with them, so this pump should be able to handle the ceramic slurry needed for ceramic printing.
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The Tube is a critical part, it will either work or fail if you don't have the correct type and size of tube.
It needs a normal NEMA17 motor and 624 Bearings for the pressure pump element.
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