Auto Focus - More questions

[johnb]

Hi

Like previous posts when I have a webcam attached to my scope the slightest touch and the image on the laptop screen is all over the place im using a Skywatcher Explorer 250 OTA Skywatcher EQ6 Pro SynScan and i fitted a MoonLite CR Dual Rate tri-knob Crayford Focuser for Newtonians

Any thougts appreciated on how i can reduce the wobble

Regards

John B

[Merlin66]

I'd suggest a Skywatcher electronic focuser motor mounted on a bracket (sitting on the OTA) alongside the focuser with a rubber band drive to the fine motion knob....