Geoffs Teflon Bevelled End Cutter

thingiverse

For the last few years, when assembling Hot Ends, I have tried to bevel the outside of the 4mm PTFE/TEFLON tube, including sharp knives and pencil sharpeners with ZERO success rate. Bevelling the inside is easy, just use a scalple, but the outside has been just too difficult. An Epiphany, and out popped "Geoffs-Teflon-Bevelled-End-Cutter". This does the standard 90 degree cut - BUT - it also bevels the outside of 4mm PTTE/Teflon tube. The pictures show the resulting bevel pretty well. To use it, just 1- cut the tube end off at 90 deg 2 -put the Teflon Tube into a battery drill 3- insert the single sided razor blade int the 45deg slot 4 - push the Teflon in, start the drill, then pull out a perfectly bevelled end.