I'm waiting for my Duet 3 to turn up from Ooznest then I'll start the process of configuring the software. I've not used Reprap firmware so it'll be a learning curve. I'll post my configuration once its done - I'll happily accept any help going to get this up and running!
All the time is overextrusion. Think i missed something in prusaslicer, swapped to ideamaker and quality is much better!
After that I started to checking everything, and when I was printing with infill less then 20% was ok. When increas infill getting worse. I changed infill overlap to 10% and infill flowrate to proper amount and now is perfect!