rotator for qhy filter wheel

thingiverse

Simple and practical rotator to adapt the filter wheel QHY, the sprocket for the camera was made for QHY163, do not know if for other models. Material: 294mm GT2 belt, 28BYJ engine and 6809RS bearing, small plastic screws. As I was having difficulty doing the fixing, I decided to make in the place and open a hole with soldering iron, the same was done to open a hole and connect the usb port. used electronics was arduino nano and motor controller, was installed in arduino this: https://github.com/fehlfarbe/arduino-motorfocus works because it is the code is the same as the focuser and rotator, after installing ascom, just select rotator and put the value of steps 38.5