Setting time for first part altering the program and then run the part after roughing only 0.1 stock for finishing tool so chattering came in finished part so for that part polishing the chattering and it will become 0.1 over sized for that part without identification move to for next
setup.in that set up they are maintaining the total length for all parts in same size so thickness 6mm -0.1 under sized so part rejected. 