set origin and it goes past the starting point
That is pretty vague. Set the Origin where, and what start point? First question: Are you using Absolute Coords? Second: Does your laser have Home switches?
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yes i have set to absolute coords i have tell it go home i get
i get an alarm 3 message
Alarm 3 is a different issue than what you wrote in the title line. That can be caused by a bad power supply or USB loose connection.
Still not understanding what “it goes past the starting point” means. More detail about the problem would help a lot.
