Machine Calibration Frequency and Procedures
Regular calibration keeps the machine producing accurate holes. I have seen machines drift out of alignment by 0.02mm over a few months of heavy use, which is enough to affect hole position on long jobs requiring tight tolerances. I follow a structured calibration schedule that catches problems early, before they cause scrap. Here is the schedule I use and the procedures I follow for each check. Weekly: Spindle Runout Check The most frequent check is spindle runout. I measure the radial runout at the spindle taper or tool holder interface using a dial indicator with a 0.001mm resolution. ...