optoNCDT 1700 sliding mount

The laser is held in place on the "Holder_onLaser" by three (long!) M3 bolts+nuts.
The "Holder_slider" mounts to the desired surface with 2×M4 hex socket countersunk screws. The position of the laser can be adjusted by two additional M4 screws, for which the threads must be cut in the "Holder_slider" (PLA works well).