The file '“Cut Indicator” For 40W Laser Cutter 3D Printer Model' is (stl) file type, size is 116.5KB.
Fixture to hold a red laser diode at the correct angle to show where the laser will cut.
You may need to pass a 6mm drill-bit through the angled hole if it's too tight.
Also, tap the hole in the side, 4mm, this is for a set screw..
I found it necessary to glue the threads of the lens on the diode to make it steady
The holes for the screws in the top are designed for 3mm taper-head screws.
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laser.stl | 291.5KB |