Opticon Perceptor telescope rotating motor bracket

thingiverse

This is a stepper motor (28byj-48) mount for Opticon Telescope for rotating according to earth movement. All solution is combined from 4 parts: 1. big gear - pushed in onto telescope's stand (Pulley_GT2_3_108-tooth_102mm.stl, Pulley_GT2_3_108-tooth_102mm.scad) 2. 28byj-48 motor 3. small gear pushed in onto motor's shaft (28byj_gear.stl) 4. bracket mount for the motor - to be pushed in onto lower part of telescope's stand (bottom_motor_bracket.stl, teleskop2.FCStd ) It should help in observing a moon without a need of manual telescope adjustments. Please remember to scale in height (Z) small gear - its original size is 8mm - and we need higher one - doubled height. Please also consider slow printing it - I would recommend 30mm/s On pictures it is visible that height is too small. Bracket does not need any supports (it should be printed upside down) All elements can be printed using regular PLA with infill minimum 15% To mount bracket and big gear - greasing of inner circle can be needed. Dimensions were intended to be pushed in to the telescope's stand using some minimal force. Of course motor needs to be controlled somehow. I used common ULN2003 driver for it and ESP32, but it can be any Arduino I guess. (by the way - Anyone knows how much degrees per minute earth is rotating?)