Thread: ZWO EAF Issue
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Old 11-05-2025, 07:20 AM
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PRejto (Peter)
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Join Date: Jan 2011
Location: Rylstone, NSW, Australia
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ZWO EAF Issue

Hello,

I purchased an EAF and a Starizona adapter to try the EAF on my TEC140 FT3545 focuser. So far the results are completely unacceptable. I have backlash over the maximun allowed in the ASCOM driver. Given the step size the backlash is approaching 1,000 microns! In contrast, my Microtouch focuser on the same focuser with same load had ~85 microns backlash.

On CloudyNights another user said he too had trouble with the EAF on this focuser and this suggests that the motor and gearing may not be siufficient to move this focuser accurately.

Has anyone here used the EAF on a large focuser with a decent, but not excessive load?

Thanks,

Peter
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