MPCNC Chinese 500mw laser universal mount

I wanted a mount for my new $40 Chinese laser... could not find one, so I made one..

The holes are set 15mm apart, and can be moved with the 123dx file if needed. Works perfectly with the universal mount on the Mostly Printed CNC machine.

To make sure I did not fry the 5v laser, I used an LM323K voltage regulator to cut the 12v down from the d9 output. Attached is a pic of the circuit. The metal can version handles up to 3A without limiting and that is more than enough for the laser.