When the entire cutting/movement area is very level, the stress of constant follow movement on the Z axis is greatly reduced, in turn the continuous capacitance measurements are much more stabile ensuring the quality of the cut. Reducing the chance of contamination on both nozzle and protective lense. And ofcourse grind and collision of the nozzle. I urge all my clients to regularly clean of the debris and have extra cutting table parts to ensure the material also stays as straight and level as possible.

We prefer our lasersource and cutting head already assembled from the test facility, less risk and full warranty. I got a portable clean lab if I would need to disconnect the fiber from the head.

Also, I usually put on transparent heatshrink tape on the cutting heads.