The laser cutter has a 23 x 14 inch work envelope and is controlled via Mach3. ... [Mike] put a water flow sensor in the laser tube cooling system.

Most PIDs have 2 alarms levels, so level one can merely light a warning light, while level 2 disables the laser and makes beeping noises. A water flow alarm is a good idea too, no point having ...

Designed for high power laser manufacturers and industrial applications such as cutting, the 20 K-W sensor delivers accurate ... whether due to low water flow availability or use of laser powers ...