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I was using my S1, 20W last night and at one point,  the laser head did not stop traveling and ran into the front of the housing. I pressed the estop and reset to home. Everything seem to be ok, but i did not run it, because it scared me. I tried to run the machine today and zeroed out the machine and tried to do a distance test. The pin came out but when it went to touch off on the side for the height it missed piece and ran into the side. The height tool fell off because of the over travel of the laser head. I am not sure what is wrong or how to correct it. I do not want to keep trying things and damage the laser head. Any ideas?

Thank you!