Origin incorrect, also bumping frame rail

I’m new to all this so please forgive me for asking what is probably an easy fix. I have a sculpfun s9 and have added limited switches and air assist. The laser homes fine but no matter where I set the origin to it always go to the top and right to start. It’s also bumping the frame on that side, The air assist sticks out on that side. Do I need to just tell it the bed is smaller or is there a better way to limit its y axis travel by a few mm?

Check this guide: Limit Switches - Diode Laser Wiki It explains everything how to set the origin and homing positions correctly. I guess you didn’t set the homing position to 0,0 (check the move window, I think it will show -410,-400 or something like that.

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