This video shows a bracket used to hold a ring of LEDs intended to produce a visual indication of the position of a CO2 laser focusing lens. I install the bracket onto a K40 CO2 laser cutter in the video.
I have uploaded the bracket to Thingiverse, Here is a link:
https://www.thingiverse.com/thing:2720345
The bracket and LED technique was inspired by Peter Jensen's video on the 4 Dot Laser Position Indicator. He even offers a kit version (at the end of the video linked below an e-mail address is provided).
https://www.youtube.com/watch?v=30y6VTjG_t8
