When I turn on my Glowforge, it boots up, but at soon as it starts to move the head, it makes a bad noise and stops. The video above has the full start up sequence. The noise happens around the 0:57 mark. The arm and head have full travel. I cannot tell if it is the left right motor or if the front back motor(s). It might be the two front back motors are out of sync and binding against each other or if one is just not moving.