I was fitting a new hotend and I've changed something and I'm struggling to identify what it is. I hope someone can help me identify the problem.
I have a Prusa printer using Repetier 0.92.9 firmware and it has a mechanical Z-min endstop.
When I home Z from the Repetier Host, it travels down to the Z endstop, triggers it, rebounds and then returns to trigger it again before backing off 2mm.
When I print from Repetier Host it raises the head to about 20mm and then prints there (20mm above the bed). The Z-offsets in the firmware are 0 and I can't find another place to set this.
This is with the original hotend installed, at the same height it was.
Where do I set the offset for this, please? Or how do I interrogate the printer / firmware to try to identify the issue?
Thanks.
