11-24-2017, 08:41 PM
(11-24-2017, 09:58 AM)f350ca Wrote: The lead screws in my Summit are metric with imperial leads. Metric screws are trapezoidal, so they have 30 degree thread angles instead of 29 acme. The screw for my compound was metric OD, imperial lead and 30 degree profile.
Sounds like the design department had a couple of pages from an old engineers handbook that the were using for a dartboard/decision-making...
Steve