cutting problem

[FAITHMECHANICAL]

we have a 3 axis cnc for the hobby industry, we cut a 2" square and on the y axis it only cuts 1 7/8" we can not figure out why its off. we have triple checked all mechanical components.

[ROBBY 68]

How did you program the path?
what is your cutter diameter?
did you compensate diameter?
are you using G41 or G42?
seems like diameter compensation error.
Roby

[Kevin45]

I know that this is probably way too late, but your "Y" axis Parameters in your machine may be off. If you have a manual for the machine, look into recalibrating the axis.