When this first arrived there was a misalignment with the y axis limiter switch that caused the motor to continue driving the rail upwards and then the x axis belt broke. The seller provided a new belt and after some tinkering I managed to replace it and fix the limiter switch. Now the device works very well for both cutting and engraving with the bundled LaserDRW application as well as Inkscape and K40 Whisperer. It requires a lot of space and a well ventilated area but includes a short vent pipe and fan.