ZWO EAF Holder for Celestron Nexstar 6/8/9

thingiverse

The previous support I made didn't work for me because it wouldn't let me take the engine apart quickly. So, I created this one. It puts the motor in a good spot that doesn't mess with the telescope's movement at high altitudes. It also lets you remove the motor fast or "unhook" it so you can focus manually. I decided not to use screws to pull the belt tight because it's just unnecessary - except if you pull too hard on the telescope's focusing axis. Hand-tightening is good enough. If you want a screw to draw the belt, I drew up some pieces and will send them your way if you ask. For the focus wheel, I used M3 screws (don't forget to tap it first) but if you have some, feel free to use headless screws instead. Put the pulley on so that its bottom is even with the chrome plate on the motor. The tightening knobs come with 2 hex screws, M4x20. It's a good idea to glue them (epoxy) in place. The pieces are printed with 50% infill, 10 layers of 0.15, and 4 perimeters. Only the engine support might need some extra help (check out the image). Here's what you'll need: - GT2 pulley with 16 teeth for a 5mm axle - 142 mm or 140 mm GT2 belt - 3 M3x16 screws (CHC) - 3 M3x8 screws (CHC) or headless screw - 2 M4x12 screws (CHC) - 2 hex M4x20 screws - 2 M4 nuts