NEMA-17 Peristaltic Pump V2

by CopabX Jan 19, 2015
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i have 25 kg/cm nema 17 stepper,
my motor will just pump 2-2.5L/h with 1mL/9 rev.
so, can i use 4-5 pump like modular connection?
i want to make diy aquarium chiller pump parts with your design. without 1:5 gears.

I tried making this but it didn't pump any water. The bearings did not put enough pressure on the tubing to create a seal. Any suggestions on how to fix this problem? Would scaling up the bearing hub by 1 or 2% help?


I will use your presitaltic pump in my project to distribute liquid in my fishtank...
In your first version, you show the end of the soft silicon tubing with a cone and i search the name of this part...
Thanks a lot !

Awesome design!
Plan to incorporate this into my Reach 3D Printer for paste extrusion...
Thanks for sharing this with the world.

Will this peristaltic pump self prime? If so at what height will it prime itself?

Nice project!
Could you tell me what bearings fit, are those 693 ZZ?

Comments deleted.

F693ZZ bearings work the best

I have used generic, sealed 3x8x3 by VXB (http://www.vxb.com/page/bearings/PROD/3mm/kit681), and VXB MR83ZZ Shielded Ball Bearings (http://www.vxb.com/page/bearings/PROD/MR83ZZ) with excellent performance.