Calibration and computer setup

when i run thru the computer setup process my xcarve jerks once it hits the Y limit switch

If you’re looking for someone to offer assistance, you’re going to provide way more information than that.

While you’re waiting for answers, there are several topics on limit switches throughout this forum…
I’d suggest you use the search feature and use key words such as “Limit Switches” then you can filter down from there to zero in on others who have had similar problems.