For a Project of mine I need a pump to dose liquid, has a pump capacity of round about 300ml/min and which is easy to clean.
I got my hands on a peristaltic pump at work and thought that principle would be great for my application.
I wanted to make a simple design with common and cheap parts because peristaltic pumps that are available on the market are quite expensive.

This Design is still a work in Progress. It currently uses a 6x9mm Silicon Tube, 608zz Bearings for the Pump Rollers and a NEMA 17 bipolar Stepper.
The first Prototype failed because the NEMA 17 is too weak.

Despite the problems I uploaded it so people can use and improve my design.

Update Jan/2025
Got on the Project again and tried a Small PGM 37DC12/77 Motor I had laying around from another Project. Added the Files for the Motor but it's still too weak to turn the Pump around with Silicon Tube laid in. So back to the drawing board.

The Hardware needed:
4x 608zz Ball-Bearing
3x M8x16 Cylindrical Head Screw DIN912
3x M8 Flat Nut DIN439B
1x M3x6 Cylindrical Head Screw DIN 912
1x 3,7 Washer DIN 9021
4x M4x50 Screw
4x M4 Nut