12 Spline Bike Freewheel Removal Tool for 21mm socket

prusaprinters

<p>I originally printed the source model but didn't have a 30mm socket to use with it. &nbsp;I had to resort to using a adjustable crescent wrench. &nbsp;Unfortunately the wrench just slipped as the plastic was elongating out the open end of the wrench.</p><p>This is just a simple remix to fit a 21mm socket (the largest I had). &nbsp;It fixed the issue with the wrench slipping, and I was able to attach the socket to a breaker bar. &nbsp;This was able to withstand a surprising amount of force, but it probably won't work if your freewheel is really stuck on.</p><p>Should be printed in 100% infill. &nbsp;I printed lying down (in the provided orientation) for additional rotational strength. &nbsp;This is because 3d printed objects tend to break along layer lines. &nbsp;You will need minimal supports for that orientation (60° overhangs should be sufficient).</p><p>I've attached the OpenSCAD file used to remix the source model as well. &nbsp;Requires downloading the source model into the same directory if you want to use it.</p>