From the previous session, I observed that the 1/4" brass finger being in the way of the spinning tailstock center. A tapered end with a cut off should work. I fastened it down to the vise of the manual mill to cut the notch so that it can press against the turning stock on the top and against the cutting force. No measurements were taken; just eyeballing the depth and step over to what I felt is right.
I re-clamp the finger at an angle in the vise to mill the taper.
The finished work mounted in the A2Z QC holder:
I did some test cut with the QCTP at various angles. Best result was with the finger very slightly behind the cutting tool.
Managed to get 0.01mm difference in diameter across the cut length of about 55mm. Sweet!!!
A video to go along:
Sorry for the shaky video. It was taken with one hand holding the iPhone and the other turning the handwheel. Maybe I should get a real camera. But the Proxxon lathe comes first. Let's see how things turns out.
Edit: I would like to give credit to Alan Haisley of the Yahoo! Sherline Group for the idea on creating the notch on the brass finger. Missed the mention due to disruptions when preparing the post.
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