Weird horizontal banding

[dsiegfried]

Did you have to tune the PID manually?

[dsiegfried]

I pointed out in my thread a while back that the bed physically moves when power is applied, I made a video with dial test indicators moving while the PID is settling in. I switched over to Repetier and dialed in PID properly and now it doesn't do that at all once its warmed up and settled in. Bang Bang is the same thing, 100% power, 0% power, 100% power, 0% power, etc. It'll flex the bed up and down, up and down.

My bed temp is extremely stable now than I have given the bed its own dedicated power supply. No more z-ribbing.