Hello Droftarts and DC42
Apologies for the long reply. I was not receiving notifications from these posts as I used to and did not see your replies.
; Filament Sensor
; M591 D0 P3 C4 S1 R80:120 L26.32 E3.0 ; filament sensor for extruder 0, enabled, sensitivity 26.32mm.rev, 80% to 120% tolerance, 3mm detection length
I have not had time to play with the setup any further but from the looks of things, the filament is nicely held in the hobbed groove. I may re-print the housing with our Form 2 SLA printer and see if that helps with the alignment of the idle wheel.
Kind Regards
Benjamin Norton