FLSun Cube X-Axis Belt Tensioner


The FLSun Cube 3D printer does not come with an X-Axis belt tensioner. So, I designed one. The design is simple but very effective.

It is mounted using the nuts and bolts of the outer linear bearings. Nevertheless, you will need longer bolts. M4 x 20mm works great.

Some extra hardware is also needed for the belt idler. You will need:

  • an M5 x 25 mm to mount the pulley
  • either 2 M5 nuts or a lock nut to mount the pulley
  • an M4 x 25 mm bolt and nut to attach the idler to the base

Its assembly is pretty straight forward.

This object was designed using Fusion 360

Printable Files

  X-Axis Tensioner Base
  X-Axis Tensioner
  X-Axis Tensioner Knob

This object is also published on the following site(s):

The source files are available:

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* give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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Copyright 2012-2020 by Claude “Tryphon” Théroux

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