01-19-2014, 12:50 AM
Thanks, guys. I'm glad you're watching.
Walter, I fully intend to make a spark-erosion EDM, but this one I got out by shattering the tap with a punch. The first 1/4" went quickly enough, then it seemed to stop. I took a few whacks at it every time I went down to the shop. Finally, the last big piece dropped out. I wrecked two new taps trying to clean out the thread. There were lots of tiny bits of HSS stuck in the threads. The hole in question is for the height-adjustment screw, so there's never any real pressure on it.
Walter, I fully intend to make a spark-erosion EDM, but this one I got out by shattering the tap with a punch. The first 1/4" went quickly enough, then it seemed to stop. I took a few whacks at it every time I went down to the shop. Finally, the last big piece dropped out. I wrecked two new taps trying to clean out the thread. There were lots of tiny bits of HSS stuck in the threads. The hole in question is for the height-adjustment screw, so there's never any real pressure on it.
Mike
If you can't get one, make one.
Hawkeye, proud to be a member of MetalworkingFun Forum since Jan 2013.
If you can't get one, make one.
Hawkeye, proud to be a member of MetalworkingFun Forum since Jan 2013.