LaserCutter/Calibration

	Attention: Warning
	These instructions are not intended for laser users. They help the PoCs to remember what to do.

Lasercutter Calibration Procedures

Safety warning: For calibration, it is necessary to deactivate the sensors of the hatch. Therefore, wearing safety glasses is mandatory. Do not calibrate the laser with persons without safety glasses in the space.

Calibration works well using sticky notes attached to the mirror mounts. The laser output is to be set to 20%. The laser is fired manually (1-3 seconds) until a burn pattern becomes visible on the sticky note. There were always two burn marks when we calibrated (Why?). The first calibration started with the mirror next to the laser tube, then moved toward the cutting area.

• The laser spot is not circular: The most probable cause is the mirror directly above the lens.

Links:

• http://wiki.fablab-karlsruhe.de/doku.php?id=maschinen:lasercutter:wartung:kalibration
• https://github.com/nortd/lasersaur/wiki/optics_setup
• https://github.com/nortd/lasersaur/wiki/Calibrating-mirrors-and-lenses