Are you kidding? I just received this uARM. There is no step by step procedure with a simple diagram that shows the position for the manual portion of the calibration. Post one TODAY, not some stupid explanation that’s cryptic like most of the replies on the UFACTORY site, but just a step by step for the uARM METAL. Do it for the Arduino library and the 1.6.1 firmware with the downloadable calibration tool (which does not even have a README file).