Chris King ThreadFit 24 BSA Bottom Bracket Tool

thingiverse

EDIT: I originally listed this as the 30mm version but it is actually the 24mm version, my mistake! EDIT2: I've used the same part with 40% infill 3 times now while adjusting spacers and finally the 3/8" drive part rounded out when torquing. More infill will be needed if you want it to last more uses. It can be a pain to find an install tool for the externaly threaded Chris King bottom brackets since they're always out of stock everywhere. And there are about 100 different Park Tool versions to choose from, so I designed my own for the 24mm version. I am still working on this design but the model I have uploaded here will work and fits a 3/8" drive wrench. I tried to make it fit snug on the bottom bracket and on the wrench to reduce the possibility for slippage. So if you find it is a little too tight for your liking you can always scale it up by a percent or two in Cura. I've printed some test models with PLA Plus and they seem quite strong, printing in PETG lets you apply the necessary torque (40Nm) to the bottom bracket without worrying about it breaking. You can always add more infill for more strength but 40% worked for me for 3 uses before the 3/8" drive section rounded out. I'l update this with more info as I go.