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Old 05-12-2018, 03:22 AM
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pmrid (Peter)
Ageing badly.

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Join Date: May 2008
Location: Cloudy, light-polluted Bribie Is.
Posts: 3,665
Quote:
Originally Posted by ChrisV View Post
Used a NEMA14 200step/rev motor - I got one with 23N.cm holding torque which was enough to direct drive the focuser.
Thanks for the added vote for Mr. Brown's project.

I've now ordered a Nema 17 Stepper Motor 17HS13-0404S-PG27 with a 27:1 planetary gearbox. So with the f8 x 200 mm scope this is meant for, that should give me 40-odd steps within the CFZ.

Now we sit back and wait a bit while all these bits and pieces wing their way here from all over the globe.

Obviously I have a bit of reading to do in the meantime.

Peter
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