I am cutting a t-slot in particle board for a 1", half-roun pvc molding on two sides of my part and a glued flat pvc molding on the other 2! i need a method of trimming the half-round mold flush with edge! cant cut mold before it is attached to part! i need a clean, straight cut without the possibility of damage to my part! Does anyone have any ideas on how to do this on the machine?