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Old 04-10-2009, 01:18 PM
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kinetic (Steve)
ATMer and Saganist

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Join Date: Jun 2008
Location: Adelaide S.A.
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Quote:
Originally Posted by mswhin63 View Post
Hi All, I understand that 1/8 microstepping is good for focuser but wondering whether 1/8 microstepper will be good for DOB mount stepping?
Malcolm,

far better to microstep down to an even finer level.
A Bartel stepper drive can allow microsteps of 20 per step
and even 40 ( I think).
This is very smooth when refined and working sweetly.

1/8 steps per step may show as coarse steps at the eyepiece
and be unworkable with the reduction ratios needed for
tracking. I may be wrong though on that point.

Steve
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