I saw you make a new laser module.
Please include in it the possibility of PPI.
It very expand opportunities SmoothieBoard laser engravers.
Need just add TTL control laser. The pulse duration of 2-3 milliseconds. And a frequency up to 1000 Hz in proportion to the velocity of the laser head.
Judging by the structure of the new laser module, it is not very difficult. It just caused by the interruption of 1 kHz.
Sorry for bad english.
I hope not only me, but all users SmoothieBoard laser cutters.