Update on this.

I solved it by running though a complete calibration and following the flowrate and stepover sample tests.

Essentially the flow rate needed re calibrating and the stepover was too high. I think the original extruder was worn out but the settings had been tuned to suit. When I changed to a new extruder and nozzle I had to change it.


I learnt a lot and the final prints are the best ive ever had now! Have run over 80lb of material with no failures!