1.0 link Rainbow Dash Network http://rainbowdash.net/ adiwan (adiwan) http://rainbowdash.net/adiwan http://rainbowdash.net/notice/5483735 I found the real culprit. It was a blob of PETG in the middle of the heat break. It was too far to be melted properly but close enough to let through a teeny tiny bit. It blocked the filament going through the nozzle at the expected rate. I tried to drill out the blob but I damaged the heat break and some of the threads in the heat block. Could have find it out sooner but the few days ago I couldn't be bothered to fully disassemble the hotend. As soon as the replacement arrives the assembly should be fairly quick. I can reuse the thermistor and heat cartridge. And the over all geometry and screw points should be the same too.