M3 Wrench-Knob | IMADE3D

thingiverse

A handy little wrench that's a real game-changer, made with carbon fibre infused PLA or PETG and built to last an impressively long time. Its deep design makes it perfect for Nylocks, but it also works like a charm on regular M3 nuts, no problem. Download the native file from here: http://a360.co/2chU5lo (Fusion 360 - just import and go to Modify > Change Parameters to tweak the number of notches to your liking). Check out this cellphone photo of the print: made with 3DXtech Carbon Nanotube PLA. 2017 Update: Adding some screenshots to complement that subpar photo, because who doesn't love a good before-and-after comparison? v1.1 Update: This version is a bit more compact overall, and I've added a pattern on top for even better grip when you just need to give the knob a quick press. The notches are deeper now too, which means it's got an even firmer hold on whatever it's grasping. Most of the variables have been parameterized, so you can play around with them to see what works best for your needs. Get the source file here: