speed handle for milling vise

thingiverse

This speed handle is of my own design. I printed the main body of the speed handle using a raft. In fill was 40%. I used 2 skate bearings pressed into the handle body using a bench vise. The crank handle was also printed horizontally on a raft at 20%. It may print fine vertically though, but I though it might be stronger if printed horizontally. This caused the threaded portion to suffer but was rectified by running an M8 1.25 die over the threaded portion. The shank is a good fit in the bearings and was also a light press fit. The original nut was a bit too tight, so that is why there is a v2. Printed flat with no raft at 20%. Sliced with Cura x,y at 104%. Clean up with an M8 1.25 tap if needed. The hex portion fit my vise perfectly. The Kurt vise has the standard 3/4" hex. It works very well to traverse the movable jaw quickly. I use a steel wrench to fully tighten the vise in practice.