I have a fryer bed mill witha twelve tool turret and an Anilam 6300 controller. I am having issues with the TLO. I have set all my tools off a 2 inch reference. I then go to G53 O1 and use the refprog button and calibrate Z. My tool goes to rapid down in Z but says that it has 17.0 inches to go but is only about 12 inches above the part. When setting the TLO for each tool should I use the re zero my part Z everytime I change tools...I need help!!!!!!!!