Hi, i was using a laser CNC ( Eleks Maker ) to cut vinyl as I build it to 4 ft x 8 ft, my first problem was the difference in size from the drawing to the table, i was able to adjust this in the steps/mm and was fine using GBRL LASER . to cut any shape on plastics, but today i open Engrave Master and follow the instructions to engrave and was perfect ( i reflash the Arduino Uno ) And now the laser is on all the time after the connection is established, when draw do not turn off the laser, after each change, now reduce the intensity ( but leave a mark ) I try to find the original firmware was 22 lines ( as I was able to copy the code when was adjusting the speed and size) looks to me, like engrave master firmware is designed for that, but I am cutting using GRBL LASER ( 1/2 watt diode laser ) I open the bachinmaker page as I bought the 3 axis board and load that firmware and I have to disconnect the laser ( 2 wires ) to make it move ( no, no laser on in this other board, ) I think, engrave master reflash the unit, and now I can't find a version ends on $22 , the first 3 lines was the steep for x,y,z, the actual code is very different. will appreciate any help, will upgrade the laser to cut 1/16 plastics like polycarbonate or Plexiglas, i am using it to cut decals from vinyl. to be clear,ENGRAVE FINE , BUT WHEN I TRY TO CUT LEAVE A THIN MARK NO TURN OFF, THIS HAPPENF AFTER THE REFLASH ON THE BACHINMAKER SITE.