NOTE: I have removed the screws from the base.stl file - but Thingiverse is taking a while to update the cache... the f3d file should allow you to export it yourself if needed.

This is a companion piece to Noe & Pedro Ruiz' insert tool. It was done as a prototype ("Bake-Off Style") and it was worth keeping both. https://learn.adafruit.com/heat-set-rig

Parts are compatible. https://www.youtube.com/watch?v=28YGT4kYzWc&feature=youtu.be&t=603

I will document this more completely, but the Adafruit Guide is a great place to start

This uses the Customizable roller adapter for Kossel Mini with 2020 extrusion by hackele https://www.thingiverse.com/thing:2749629