Design For 3D printed gadget for moving line laser

I designed device to control line laser on my 3D scanner automatically. It uses a small electric motor and all the other parts are 3D printed. It will attach it to 3D scanner. The big wheel turns about 1 rmp. Smaller wheel turns about 8 rpm and it is controlled with potentiometer. Potentiometer is a electrical component. More info go to wikipedia Potentiometer

The device will be printed soon. I will post pictures and add info on my Pinterest account. Follow me on Pinterest
3D scanner 


Also I will make a interviewing Mikko Hoffren. The guy behind the 3D printer. More of that soon..