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My 3D printer has got a clog, and i think it is because the nozzle hole has just recently started to only screw in crooked. I’m not sure how this happened. I have tried with multiple nozzles, but they all screw in crooked. Is there a way to fix this? Or is my only option to get a new hotend.

My 3d printer is an Ender 3

enter image description here

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    $\begingroup$ The technical term for this is "cross threading". $\endgroup$ Jun 24 at 7:09
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    $\begingroup$ Note: if the threads on the heater block and /or nozzle have residual filament material on them it is easy to cross--thread the nozzle, especially when cold.. In this case it is easier to attach the nozzle with the heater hot so the filament material is soft. $\endgroup$
    – Perry Webb
    Jun 24 at 14:37
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You should be able to purchase only the heater block for your hot end. The nozzle should thread in by hand without undue force. Having to use a wrench at the outset is an indication of a problem which should have stopped the attempt.

There are many sources for the "heater block for Ender 3" when used in a search. One such result is an Amazon seller of three pieces for US$11.99

amazon heater block for ender 3

Image via linked site.

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