Waiting for the epoxy to harden on the knife, I ended up working on my grinder. It has a large pulley wheel that is poorly made and wobbles, it also is much to large and makes the machine slower. I needed to replace the pulley. I ended up finding one but it had a smaller inner diameter than the old pulley, and the shaft was 3/4'' diameter while it needed to be 1/2''.

 I threw the axle on the lathe and took her down to the right size to fit. 

Here the axle is fitted with the new pulley. 

The geinder now has a new pulley ands moves much faster. the old pulley is on the right.