Slew Drive

thingiverse

This is the slew drive for a Alt/Az GoTo telescope mount I am building. It uses a Nema 17 stepper to drive the worm drive, which provides a 15:1 ratio. Along with 1/16th microstepping this allows a 0.0075 degree per step accuracy. All parts were printed with ESUN PLA+, but it can be printed in any material. ##Required Materials: * 1x Thrust Bearing [6655k61](https://www.mcmaster.com/6655k61) * 1x Ball Bearing, Trade 608 8mm shaft [5972K91](https://www.mcmaster.com/5972k91) ** I'm pretty sure skateboard bearings will work too, as they should be the same size * 11x M3 x 10mm x 5mm Heat set inserts. These are to attach the upper part to the lower part * 6x M4 x 10mm x 6mm Heat set inserts. These are to mount whatever you want to the slew * 4x M3 x 12mm screws. These are to attach the stepper to the drive * 11x M3 x 16mm screws. These are to attach the top and bottom part * 1x M5 x 20mm screw. This secures the gear to the bottom * 1x M5 nut. This secures the gear to the bottom * 6x M5 screws. These are used to secure the bottom to whatever you want.