I am using a Mini for a while with colorFabb products with great joy. The Mini does not suffer any modification since it has been bought around 8 months ago and it was working like a charm.
The printer is not printing everyday and everyday long but I use it 2-3 times a week (it’s an average).
I use OctoPrint on a Raspberry in order to get tethered.
Today, I switched from PLA/PHA to nGen and extruded manually and then using software in order to get a clear extrusion. I then started my print which suffered a jam.
I switched off and disconnected everything and unmount the toolhead in order to remove the jam.
When everything when back mounted, everything seemed to work fine (heater cartridge, extruder temp, fan, Y axis) except that the extrusion is not moving at all. Wires are not disconnected and are not stressed out. Wheels can move when pushing by hand.
I suspect that NEMA driver on the Rambo is dead.
Does anybody have a test procedure?