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no-PTFE brass hot-end

no-PTFE brass hot-end

thingiverse

The MK4 extruder's hot-end modification eliminates the PTFE, which is susceptible to melting and swelling, from the heating element. It is based on the all-steel lampmaker's design but incorporates brass components from a failed MK4 hot-end along with homemade aluminum fins. For instructions and more information, visit http://builders.reprap.org/2010/08/no-more-melting-extruders-removing-ptfe.html.

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