calibration error

[dlgustjr0911]

Hi, I made a scara single arm using your firmware.

After that, I did the calibration, and the elbow thinks that the numerical value is determined correctly.

The problem is the shoulder, which will continue to return a ‘NAN’ value each time I perform a calibration.

I think I have done exactly the calibration guide you wrote. However, it still returns NAN.

If you answer the condition that the 'NAN' value can occur, I can solve this problem.

Best Regards.