Peristaltic pump

myminifactory

Edit 22 Sep 2020: Added a schematic to github here. I'm not responsible for any damage caused by this schematic, please let me know if there is any mistake. Edit 02 Sep 2019: Code for Arduino driver https://github.com/KarimLakra/OSP2_Open-Source-Peristaltic-Pump_3D-printed-peristaltic-pump-Arduino-program-controller I needed a water pump for many things, and I found the peristaltic pump to be the best for precision dosing. It can also be used for continuous pumping, with the liquid separated from other parts by tubing. This makes it safe for use in food applications and many others. The peristaltic pump offers easy maintenance. After watching many designs, I decided to design my own to see how far I could take it. Feel free to suggest any useful tips! The capacity of this pump is about 160ml per minute, which can be pushed a little bit higher, but I didn't want to damage the tubing. The pump is easy to assemble, and I've attached pictures step by step. I started working on this project last year with an Arduino Mega2560 and a TFT screen. The code got complicated when I added many options to control the pump, but I plan to add schematics soon for testing purposes using basic electronics without an Arduino. Parts needed: * 4 M3 nuts * 3 M1.85x10 screws * 3 M3x3 screws * 4 M3x8 screws * 4 M3x11 screws * 3 Bearings 624ZZ ball 4x13x5 mm (I've also included a printable bearing if you want to try it) * Tubing PharMed BPT (information in the picture) Questions are welcome. The files for 3D printing can be found here: https://grabcad.com/library/peristaltic-pump-13 More information and updates can be found on my web pages: http://karim.lakras.eu/ Note: I made holes for the M3 nut that aren't used all of them, but they can be useful if you need to lock the parts very well. I also made deep holes for the M3 screws, so if you want to use longer screws, they have a place already. There's an attached file for the rollers if you decide to print them; make sure you smooth out their edges, or you'll cut the tubing. Also, the triangles that hold the bearings are marked with a line as in the pictures; those sides must be in the same vertical line so they lock the triangle and prevent it from turning. Edit: I posted a second video to show more information about the pump below. Visit my pages to see a simple schematic on how to drive the stepper and more information: http://karim.lakras.eu/index.php?page=hobbies&lang=en&cat_hob=peristaltic Printer: ANYCUBIC I3 MEGA Rafts: Doesn't Matter Supports: Yes Resolution: 0.4 Infill: 100% Notes: I changed the M3 nut holes after printing these parts, so if anyone notices anything that needs to be changed, please let me know.