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On Tuesday, July 9, 2013 4:38:52 PM UTC-4, Jim Wilkins wrote:



I've been slowly accumulating the parts for a Fitch or Hanrahan
rotary
converter. I have the schematics but no practical experience with
their quirks and limitations.
jsw

I have some experience with rotary converters, so let me know if you
need help finding parts or have questions. I am going to a new
email address, but you can reach me at dlcaster57 at Yahoo dot com
for a while.
Dan

My lathe has a threaded spindle and the manual for my Delta surface
grinder says not to expect better than a 25 microinch finish, so 3
phase motors probably wouldn't improve them. I can sharpen up to 3/4"
drill bits on a Drill Doctor and don't really need to fix the pedestal
grinder. It was just a what-if before the AC caps disappear into other
projects, like fixing golf cart battery chargers.
Thanks anyway.
jsw