On 07/21/2020 12:27 PM, andy pugh wrote:
On Tue, 21 Jul 2020 at 18:16, Matthew Herd <herd.m...@gmail.com> wrote:
Thanks for the insights. I suspected something along these lines, even if I
might have other problems with noise. I can confirm, the spindle stops way too
slowly and definitely more than 10 revolutions pass before stopping. Long
story short, I can’t readily run the machine in back gear
I think that's a story cut too short. Why can't you run the machine in
back-gear? I really wouldn't anticipate rigid tapping being done
without it.
I do all my rigid tapping on smaller taps in direct drive
with the belt on the highest speed setting.
This reduces the effective inertia of the motor, for faster
reversing. The motor is usually running
at 15-20 Hz in this mode. I do 2-56 up to 6-32 taps at 1000
RPM, and 10-32 and 1/4-20 at about
600 RPM.
Jon
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