HrEM - Harmonic EQ Mount

##HrEM is Harmonic EQ Mount with OnStep controller

Gear ratio is 1 : 404.1818 ( 1+46/11) *78

Source code on [GitHub](https://github.com/romanhujer/HrEM)

##BOM

* 2 x 6010ZZ bearing
* 2 x 6807ZZ bearing
* 12 x 606ZZ bearing
* 2 x 17HS4401S-PG5.18 or 17HS4413AG5.18-X Stepper motor
* 2 x CL-70N Swis Arca Clamap or small Vixen Dovetail clamp S7933
* 1 x Optional Universal Vixen Dual Clamp
* 1 x Sky Watcher Adjustable Pedestal for Eq1uatorial Instrument
* 1 x Tripod Aluminium or Zomei Carbon tripod
* More M4 and M5 Screw and Nuts ;-)
* 1 x OnStep MiniPCB 2.0 or my OnStep MiniESP32 PCB
* 2 x GX16-4p connector set
* 1 - 3x [Domyos Weight](https://www.decathlon.co.uk/28mm-cast-iron-weight-bar-discs-body-training-id_1042303.html) 0.5 kg, 1 kg or 2 kg
* OnStep Wiring diagram and PCB [ESP32 Mini](https://easyeda.com/hujer.roman/onstep-esp-mini) or [MiniPCB 2.0](https://easyeda.com/hdutton/minipcb2)
* OnStep [SHC](https://www.thingiverse.com/thing:321