Thor, or should that be Zeus?

[Davek0974]

Thor's Z Axis is alive. Short vid of it running on my very wonky table at 5000mm/min - 25mm cycles via the PID tuner. No tuning has taken place yet, Ill do this once mounted and limit switches have been installed.

Looking good, try tuning manually - adjust the I & D values, there are documents online about doing this but its also in the CS-LABS booklet. The delay between reverse is a homing error - its not settling at at the zero point fast enough you should see the numbers very slowly retuning to zero and then the green LED comes on in the tuning page. Tweak the values and you should see following error drop and the cycle time rise - in the end it will be going bang-bang-bang one way then instantly the other. You need fast homing (return to zero) and not a slow creep.

The auto-tune is pretty pants really, always tune with the final load, rough tuning is fine for tests but when finished and assembled tune again with all load attached.