Can't Remove PTFE tube from heat break. Please help
Just bought a used prusa mini and it clogged while loading my filament.
I have been trying to remove the PTFE tube to clear the clogged filmaent but it won't come out even with needle nose pliers.
Can't find many posts regarding this issue specifically.
RE: Can't Remove PTFE tube from heat break. Please help
You can't know what abuse this machine has suffered, IIWY I'd buy a new hot end and treat the existing one as spares. In the fullness of time you'll be able to strip down the hot end, a bit of heat, a bit of cold and bob's your uncle.
RE: Can't Remove PTFE tube from heat break. Please help
I do not know where you are located, but for shipping to the US, I buy two rolls of filament and add spare parts to get the most for the same shipping price.
Follow instructions here:
https://help.prusa3d.com/guide/how-to-replace-a-heaterblock-heatbreak-mini-mini_122769
Follow the instructions very precisely, especially steps 13, 21, 22 and 24. The gap dimensions and torque are critical to proper function and the procedure has changed from the original instructions. If the hot end is very crudded up, it may be difficult to remove the thermistor and heater. The three grub screws on the the heatbreak tend to strip. A tapered Torx tool will grab them better than a hex key.
Regards,
Mark