I recently received a Stellarvue Access 102 scope and would like to install a ZWO electronic focusing device on it. I'm having trouble however removing the knob on the coarse focus side of the focuser. Would anyone care to offer some advice as to the best and proper way to remove the knob?
Thanks for your time.
Roeland Park, Ks.
On the coarse knob side remove the cosmetic grub screw. Get a headlight and look into the opening. Rotating the knob you should find two grub screws about 90 degrees apart. The grub screws should be the same size as the cosmetic grub screw cover.
Here is something I just ran into, one of the grub screw holes had Two grub screws in it! The first was tight on the flat of the shaft and the second locked the first one in the hole like a jam screw. Be careful that you use the correct size hex wrench with a square tip, don't be tempted to use ball tip wrench, they can slip and strip the opening.
Good luck and keep us posted!