100% Solved - Clean blocked extruder nozzle in 3D printing
100% Solved - Clean blocked extruder nozzle in 3D printing

Signs of blocked nozzle when filament are not extruding uniformly, extrude very thin filament than usual or not coming out from nozzle.

What you need: (It will cost you less than $15)

1. Acetone ($7 for small bottle)
2. Torch (Available on eBay at around $5)
3. Very thin wire

Important note: Please read your user manual before removing it from the block. Some 3D printers require heat to remove and install.

Step 1: Soak the removed nozzle into acetone for about 15 minutes to clean out exterior dirt. Use a tissue paper/cloth wipe clean the nozzle.

Step 2: Place a nozzle on a stone and burn it using the torch for about 1 min. Make sure it is extremely hot until you see slight changes in the colour.

Step 3: Use a very thin wire to clear the hole in the nozzle. If the wire cannot go through repeat step 2 again until the can go through. You do not want to scratch/damage the internal wall of the nozzle. Do not force through the hole with the wire. I use soft copper wire stripped from an unused phone cable.

If everything goes well, the nozzle should extrude nice smooth thick filament.

 
 

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