Re: Started new OnStep hardware design


skyguynca
 

The 6 to 15 deg/minute is only a ruff estimate using nema 17 steppers which are limited by the need for more torque (low rpms and torque small stepper need alot of reduction) to start and the mass of mount and scope. The nema 23 steppers i will be using can turn 2500 rpms at 64 microsteps, with the right ratio I should get slewing rates in excess of 120 deg/min with enty of torque to spare.

David Mikesell
San Jose, CA

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