DIYode has a G.Weike model LG900 laser engraver. The laser is a 60Watt CO2 tube with 3 mirror flying optics setup and a 56mm final lens focal length.
The mirrors are 25mm in diameter and the lens is 20mm in diameter.
A very good place to start is KwartzLab's Wiki on their laser : Laser Cutter
- [ http://www.transonturkiye.com/tutorials.html LaserCut 5.3 Software Tutorial ]
- [ https://www.youtube.com/channel/UCYlpF5Vm0Tm-JiFrk7Uck2g Misc LaserCut stuff ]
Care and Feeding
- [ https://www.youtube.com/watch?v=H2ULldN28V8 Prepare image to laser engraving with photoshop ]