Spring-loaded NEMA 17 Steppers / Belt Tensioner 3D Printer Model

Author: @
License: CC BY
File formats: scad,stl
Download type: zip
Size:55.0KB

The file 'Spring-loaded NEMA 17 Steppers / Belt Tensioner 3D Printer Model' is (scad,stl) file type, size is 55.0KB.

Summary

This is an improvement to precisely set and keep a given belt tension by pulling the stepper motor downwards with a spring.

Some people were asking for it in the original design, mainly to reduce the risk of over-tightening the belt.

So here it is: obviously you'll need an appropriate spring and a fews more nuts & washers.

Additionally, it might even compensate belt length variations during print if the stepper is kept slightly loose

Update: I've added a 4-screw version, probably required if you do not have the wooden plates but 4 cylindrical independent spacers.

stepper_tensioner_spring.scad 5.3KB
stepper_tensioner_spring.stl 308.6KB
stepper_tensioner_spring_4screws.stl 378.8KB