LK4 Pro Laser holder

This is a support for 500mW Laser module.
It fits on a Longer LK4 Pro or an Alfawise U30 pro fan support.
I use the hotend right fan connection to electrically power the laser module (my solution is to plug an Y cable on motherboard on the fan connector to power the twice).
I need to inverse + and - when I want to use the laser (unplug and plug the connector take 10 seconds).

With this laser you can engrave wood, leather, I think we can engrave plexi and glass too (with a first black spray paint layer).

I use LaserWeb engraving software to generate gcode with a 0.1mm thickness and a speed between 250 and 300 mm/min, power between 1% and 5% (0-255).

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