hi, i am ready to machine some parts on my new cnc retrofit of a bridge port . so i have a simple plate 4 holes 5" x 5" with holes being 4" apart . the dead side of my vise is to the back of the table . how do i move the x y zero from the lower left Conner to the upper right Conner were i will be putting the stop . any help would be great . thanks

Unless I don't understand your question, set the lower left corner of your square plate as X0 Y0, not the upper right corner.  Then the first hole on the bottom left of the plate will be at X0.5 Y0.5.

This is the way I would do it.

Regards,
John Champlain
www.picengrave.com

what i am saying is i use the upper right hand corner of plate to zero the machine . this is on all parts . what i don't understand is i see in the program that it uses the lower left coner . is there any way to change this ?

You can set up the top right corner as X0Y0 BUT you will have to program the code BASED on that position. You will be working in the Xneg Yneg quadrant and all your code will be NEG numbers.

Best to keep everything as NORMAL. You can still use the top right of the vise to setup from it just won't be X0Y0.

Just a thought, (;-) TP