FDM Cleaning the nozzle

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The first step to clean the nozzle is to take it out of the printer, go to the section “Replacing the nozzle” to learn how. After the nozzle has been taken out we can clean it with fire. To do this grab yourself a cup and fill it half way with water. Then get a blow torch and adjust the wheel until u get a blue flame. Get a pair of long metal tweezers to hold the nozzle in front of the flame and place the cup of water below it. And plastic that is stuck on and inside of the nozzle should melt and fall into the cup of water. The next step is to let the nozzle cool down and scrape of any excess plastic. To help cleaning small bits of burned plastic, use a alcohol soaked paper towel to wipe this off.