Printing from the same file on the card as I have done previous identical prints, so I dont think its a software issue.
I looked at the gear on the extruder and it looks clear.
Filament hase been on the printer maybe 6 m, so swapped it, same issue.
Noticed when it is printing, the extruder clicks every now and again, like it cant push the filament in.
Marked off 100mm, on the filament, told it to extrude 100mm, and it only did like 20mm instead 100.
Took the nozzle out, ran it in increments of 25mm, and it was off... going like 20mm.
Increased transmission ratio from the stock 93 to 100, and it seemed about right.
Put a new nozzle in, heated to 200c and ran it again for 100mm and it consumed like 20mm... so 80mm too little.
Ran it again at 215c, consumed about 20mm.
The extruder is turning steadily....
Feels like the problem is in the hot end...
Anyone?