I'm looking for an AA Battery Size Laser to put into a CNC Router for checking position. It would not stay in permanently, just for random checking.
Bob
Check on ebay, for about 20 bucks you can get around 50 mw in a copper or brass module ready to be wired to a power supply. They usually have the driver in the module. They even come in all kinds of wavelengths and spot type, line, cross, spot, etc.