I'll be receiving an 80W 6090 pretty soon, but found the tiny little 40W laser Dee was selling pretty much NIB for $750 and couldn't resist picking it up. I'll probably give it to my girlfriend once the big unit arrives.

Setup was fairly trouble free. I can engrave simple stuff OK, but when I try and run a larger file the strangest thing happens. Right in the middle of the file the head just shoots off in a straight line with the laser still on. Sometimes up, sometimes down, sometimes sideways. Funny thing is it only does it if the laser is firing. If I leave the door open so the laser doesnt fire, the head still runs the job but without any problems.

Model is an Artsign JSM40 running Newly Draw software. Problem happens in both imported files and files generated in Newly Draw.

Any ideas??