[QUOTE=gregbradley;1427929]
Quote:
Originally Posted by sil
Thanks for that but no its not that.
I think it will get better over time and I would prefer it slightly stiff to move than too loose and losing focusing or shifting alignment.
It will shift focus with temp shifts but not that much. One refocus after a few hours seems to be enough.
Greg.
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Hi Greg,
DeepSkyDad have released the motor focus unit for the Redcat:
https://deepskydad.com/autofocuser2/redcat
If you read down the page, he comments on the stiffness of the helical focuser in first 5 mm and recommends not using that section, if possible. He also diagnoses some internal play with the focuser, which is not ideal, but he thinks it can be compensated for by SGPro etc.