I have been trying for some time now to successfully create and calibrate a disc tip using version 3.10. I have followed all directions that I can find and still have issues. The biggest issue is that when calibration cycle runs, the disc will eventually run into the calibration sphere. It finds the top of the sphere just fine, and starts taking points around the outside (above the hemisphere). Once it gets ready to start the scanning cycle, it will contact the sphere during a move which of course stops the process dead. The machine is setup with a PH10MQ head and an SM25-2 scanning module. Below is my probe assembly setup and my tip calibration preferences.