Here is an old project now almost finished: a stepper motor based laser sweeping mechanism to be used with DAVID-Laserscanner. The design has been done with ViaCAD 2D/3D. CNC G-Code file generated with CamBam.
The stepper motor is used with a planetary gear box of 1:100 ratio. This gives a resolution of 0.018°.
The electronics is based on:
Custom board for laser and light control
The different parts before machining the box:
The mechanical elements has been machined with a CNC-6040 router.
Next step is the machining of the Laser support axis.