eBay Chinese CO2 Laser Cutter & Engraver – Primary Mirror Alignment Jig

To help dial in my eBay Chinese CO2 Laser Cutter & Engraver, we developed this simple alignment jig which sets a small laser pointer (see link below) at 45 degree angle to the mirror plane the idea is it will show how far off the gantry assembly is from being square.  Also note the parts will be tight and you might have to shave a little here and there to make everything fit, however that is okay.

Print information: Layer height 0.1 with an in-fill of 10% (use a high quality setting to print)

5V 650nm 6mm 5mW Mini Tube Laser Dot Diode Module (note: this is the 5v version so this will not require the 220 ohm resister as mentioned in the video to power via USB)