Survey of stepper motors for focusers.
Ideal torque and step size calculations based on rules-of-thumb and calculations described in myFocuserPro2 project.
- Torque color coding based on 75 in-oz minimum torque recommended by myFocuserPro2.
- Step sizes assume full-stepping (to save power and avoid jitter).
- Ideal step size range (0.1 to 0.25 deg/step) calculated based on several common refractors and Newtonians, using "critical focus zone" calculations described in myFocuserPro2 instructions.
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