Dual Alignment for 40W (K40) CO2 Laser Cutter - HellRzR

Remixed from different designers:

* "Laser houder" and "Chain end":
The holder was remixed from www.thingiverse.com/thing:890705.
I altered the holder to use it with my 2cm wide cablechain. And I used different holders to mount the 5v laser diodes. Both of the allign exactly with my laser and when the 2 dots become 1 the item is at the right distance (and the cutting laser is in focus)

* The "laser houder" (u need 2) is used from https://www.thingiverse.com/make:301584.