Parametric Peristaltic Pump

thingiverse

This is a highly efficient peristaltic pump design based on Emmett's Planetary Gear Bearing. The unique aspect of this design lies in its ability to be printed as a single, cohesive piece with captive rollers and no exposed rotary wear surfaces. The only external component required is the tubing itself. The design is intended to serve as a proof-of-concept and can easily be powered (right out of the box) using a standard nut driver bit. For practical applications, it's recommended that you add a mounting feature for a small electric motor or similar mechanism. To access more customized parameters or use the STL file with tubing types other than 3/16 inch OD latex surgical tubing, simply open the accompanying OpenSCAD file and make your desired modifications. Instructions to follow: This model was initially printed using a Lulzbot TAZ printer. Depending on your specific printing needs, you might need to adjust the 'tol' (tolerance) parameter to achieve the desired outcome. The primary goals are to eliminate any unwanted play between the gears and ensure that they do not stick together upon printing. After printing, simply dislodge the prototype from its resting place on the bed, thread your chosen tubing (latex surgical tubing being a particularly good option) through its center channel, and your device is ready for use.