- Joined
- Dec 18, 2019
- Messages
- 6,464
Two more posts on this thread before transitioning to a project thread. Wanted to test cutting the half moons on the lathe. Chucked a small piece of 5/8" O-1 in a 4J. (That's what I had.) Cut a flat on it. Used a TCGT carbide insert for this. Despite the interrupted cut, everything was good except two corners which chipped. Probably should have used a new edge on the insert for this, but I was lazy.
4J marks are on the two ends and on the sides, they are not near any bearing surfaces. The circular grooves on the face were a little deeper than expected, but I can hone them to any degree of smoothness. Honing annealed O-1 is a piece of cake compared to HSS. After I make it prettier, I'll try drilling it. Not expecting that it's worse than any other O-1.
Contacted Form Roll Die for the knurling wheels. Not sure they want to sell to a hobbyist. We'll see.
4J marks are on the two ends and on the sides, they are not near any bearing surfaces. The circular grooves on the face were a little deeper than expected, but I can hone them to any degree of smoothness. Honing annealed O-1 is a piece of cake compared to HSS. After I make it prettier, I'll try drilling it. Not expecting that it's worse than any other O-1.
Contacted Form Roll Die for the knurling wheels. Not sure they want to sell to a hobbyist. We'll see.