However the height would be tight on the Sherline mill, so I have decided to make it in threee steps, which I have named prone, standing and supine, for obvious reasons.
I also had another reminder of the importance of sharp cutting tools. ScopeRoller makes a lot of 1/4"-20 and 3/8"-16 threaded holes in aluminum. My worker noticed that when making the 3/8"-16 holes, the tap produced beautiful threads, much nicer thn the 1/4"-20 tap did. The 1/4"-20 tap I have had for many years, and itr is no longer very sharp. I replaced it with a new one. Awesome!
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