Rachet with t-nut for 30 mm aluminium extrusion profiles

I wanted to mount some cables to my Prusa MINI's Z alu profile using something reusable - that's how this rachet was…
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updated February 7, 2020

Description

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I wanted to mount some cables to my Prusa MINI's Z alu profile using something reusable - that's how this rachet was born.

The "T-nut ratchet for 30 mm alu extrusion profile.stl" contains a pocket for an M3 nut. You can fix it with a 15 mm M3 bolt.

I have iterated a simplier version with an M4 hole to use it with a proper T-nut.

Link to the design: https://myhub.autodesk360.com/ue282d3d0/shares/public/SH56a43QTfd62c1cd9685643e0a1951e2bb3

Update #20200211 - new features:

  • t-nut turns only one way
  • ejector hole for the M3 nut
  • countersunk slot for the M3 bolt
  • more room for the hex key / screwdriver
  • extra teeth for tighter lock
  • smaller and 60° teeth for easier operation
  • left side of the rachet will not overhang on the 30x30 profile hence allows easier installation even if something is already installed on the side of the profile
  • extra "fat chicken" edition for even tighter cable lock :)

Installation: https://youtu.be/bvUciTL83wk

Blogpost about the design process (sorry folks, Hungarian only): https://fns.pappito.com/2020/02/11/3d-nyomtatas-a-dagadt-csirke/

Print instructions

No support needed.

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The author marked this model as their own original creation.

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