Peristaltic Dosing Head

thingiverse

This is a sophisticated dosing head featuring a reversal dampener. It utilizes an 9:1 gear ratio and a powerful nema 14 drive motor. This device is part of a comprehensive series of experiments I am conducting on liquid/farm bot/bio related equipment. Videos: https://youtu.be/VUNKPKBcuh0 https://youtu.be/e03CmF6zqBc Regular parts: I used widely available components for the majority of the device, M4 machine screws, M5 Machine screw and square nuts for the rocker and 24 tooth pivots, a ballpoint pen spring and several M3 and M4 set-screws. The bearings include 5x 10x5x4, 4x 9x5x3, and 1x 7x3x3. The only unique component is the sleeve bearing in the center of the base gear. Special parts: INA HK1010 Needle Roller Bearing https://www.amazon.com/gp/product/B006KT1FEU/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 Nema 14 Stepper Motor 35mm https://www.amazon.com/gp/product/B07PQ12SDW/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 Laboratory, Food & Beverage and Vacuum Plastic Tubing, Clear, 1/16" ID x 1/8" https://www.amazon.com/gp/product/B00FW7UUTM/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1 Male luer with Lock Ring x 1/16" Hose Barb https://www.amazon.com/gp/product/B003NV7LFU/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1 30 Ga 1/4 Inch Blunt Tip Dispensing Needle with Luer Lock https://www.amazon.com/gp/product/B07VSDCRQG/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1