Set origin and it goes past the starting point

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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…also a possible source of error

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.