My extruder head is blocked just above the alu block

My extruder head is blocked just above the alu block.

two questions:

- Is there anything at that place what should be there or should there be a channel of 1.75 mm all the way from the top of the print head to the print mouth? or is it a problem when a push a metal wire through the compleet head?

- can the alu block be separated from it's cooling fins?

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1 Answer


to answer your questions:

1) There a PTFE tube through the heatsink. You can try to increase temperature to 260-270 and try to push ABS through. Or heat it up to 290 and carefully push a metal wire through.

2) Block and cooling fins are one part, but the whole Hotend can be disassembled. Guide for this is coming up soon.

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