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-[title] Teflone tube remove.
-[* black] As the machine reached the set temperature, remove the Teflon tube from the nozzle block.
+[title] Nozzle cleaning
+[* black] As the machine reached the set temperature, remove the Teflon tube from the nozzle block. clean the nozzle with the help of a needle by inserting the needle from the top of the nozzle block.
+[* black] In some case, the teflon tube or filament will not come out easily. At this case increase the nozzle temperature to 280 and try to remove the teflon tube. After it clean the nozzle with the help of needle.