Hello everyone, I'm having a problem with my V6 hotend: The extruder shrinks the filament, after 3-5 sec, because it takes a lot of force to extrude. After testing a lot of things, I'm asking for your help. My setup: A new genuine E3DV6 3mm hotend with 0.4 nozzle on a wade's geared extruder Tested with 2 differents 2.85mm PLA Fan always on RAMPS 1.4 with latest marlin firmware and thermistor set to 5 What have I tested: It's very hard to push by hand. It's ok at first but becomes impossible after about 10-20mm of filament. I think the hotend is properly assembled. I've checked it several times The temperature is reached correctly, seems stable and Tested with different speed rate (from 50mm/s decreased to 15mm/s) Tested with temperature from 200°C to 240°C Anyone have any ideas on how to help me with my problem?