I need help diagnosing why my machine is misbehaving. The X axis is loosing steps in when I am cutting wood at a feedrate of 400, 3.175mm end mill, 0.2mm depth.

I have taken some footage of it doing a dry run of the cut and you can see erratic movemment in the x axis. There is also a fair bit of noise other than stepper noise as well.

I would have guessed at mechanical problems because of the noise and vibration. except for some erratic little jumps around that make me wonder if it is a control issue.



Looking at another thread, I took the precaution of adding 470nf capacitors between the 5v line and gnd on the control board.

Attachment 214958

The soldering is not perfect, but it tests OK using a multimeter.

I wonder if someone who has seen issues in this machine would like to guide me