So. First time using this recently. I printed two tyres for the OpenRC F1 car I'm making fine on Sunday. Turned the BigBox on last night to print some and the filament keeps wrapping around the hob gear. It will print maybe the first 3 layers of the part before it starts to not feed properly. I am wondering whether as the fan is increasing, the hotend is struggling to keep temp and then it can't push the filament through as easily? Not that NinjaFlex really needs a push as it is so dribbly. Printing at 230 with 25mm/s speed. I tried heating my hotend to 240 but it wouldnt reach it - I need to adjust my PID by the looks of it.