These needles are ideal for cleaning clogged nozzles of FDM / FFF 3D printer.
How to use: heat both needle and hot-end and then pass the needle through the hot-end.
The flexible, sharp needle allows you to remove any residue that is in the nozzle.
To remove a clog using the needle method, an acupuncture or hypodermic needle is required. The size of the needle must be small enough to fit the nozzle. For a standard diameter of 0.4 mm, the 0.3 mm needle works perfectly. Preheat the nozzle to the normal printing temperature for the last material used. Be careful, the needle is hot and the all-metal structure of the needle conducts heat well. The goal is to break the blockage and release the nozzle. Insert the needle from the bottom and move it carefully. Then remove the needle and manually insert the filament from the top and push. If the block is still not clear, repeat the steps again. If this method does not work, the alternative is the cold pull method with the CleaningFilament Aprintapro.