Heya all! Long time lurker and new astrophotographer.
I have decided to build my own tracking EQ mount to swing around my 10" reflector, but also to have a nice stable mount for future larger setups as well. Because at the end if the day, a telescope mount is not much different than a CNC machine, just with aimable axis in weird spots!
The mount design is fairly simple, big bearing tubes, large spring tensioner worm/wheel drive and some modest Nema23 stepper motors. Will be driving it with an EQdrive controller.
128t worm wheels gives 128:1 reduction to the stepper. At about 60% transfer efficiency would yeilds about 35 ft/lbs of movement power. Accuracy will be about 2 arc seconds with a reasonable 16x microstep.
Still a bunch of work to do, but well on the way!
onwards to fab!