Peristaltic Pump for NEMA14 stepper

thingiverse

This is a peristaltic pump designed for seamless integration with a NEMA 14 stepper motor. It achieves an impressive flow rate of up to 65 mL per minute at 200 RPM, utilizing a 0.8 mm internal diameter tube. For enhanced performance, simply upgrade the tube's internal diameter and recalculate the maximum flow rate using this formula: pi * (new diameter)^2 * 54 mm * 3 * 100. The pump is optimized for use with 1 mm thick wall tubes; however, you can modify it to accommodate different wall thicknesses by adjusting the parameters within the provided source file. In addition to the printed components, you will require the following parts: * 1 NEMA 14 stepper motor, 200 steps/rev (available at https://www.omc-stepperonline.com/nema-14-stepper-motor/nema-14-bipolar-1-8deg-18ncm-25-5oz-in-0-8a-5-4v-35x35x34mm-4-wires.html or http://www.eu.diigiit.com/fr/actuators/stepper-motors/nema-14-soyo-stepper-motor) * 1 Santoprene tube, at least 10 cm long, with an internal diameter of 0.8 mm to 1.6 mm (available at https://www.par-group.co.uk/hose-and-ducting/flexible-tubing/6708-santoprene-peristaltic-tubing/, https://www.amazon.fr/Antrella-Silicone-Alimentaire2mm-%C3%A9paisseur-transparent/dp/B07SYY334B, or https://fr.aliexpress.com/item/32512377223.html?spm=a2g0w.12010612.8148356.2.5b7f4c7eqmgflZ) * 6 ball bearings, 3x6x2.5 mm in stainless steel (available at https://www.123roulement.com/roulement-SMR63-ZZ-INOX.php or https://www.123roulement.com/roulement-MR63-ZZ.php) * 2 M3 socket head screws, 25 mm long * 5 M3 socket head screws, maximum length of 12 mm While printing the cover is not mandatory, it is highly recommended to protect the bearings and tube from debris that could damage them during operation. Mounting holes are strategically placed in the design, allowing for secure attachment using M3 socket head screws.