A common problem for animals who frequently change nozzles is the heat block getting stripped.
![](https://cdn.hackaday.io/images/9182231631428109651.jpg)
![](https://cdn.hackaday.io/images/7920821631428110426.jpg)
They're all made of aluminum. The stock nozzle had red thread locker. The maximum torque before stripping probably isn't enough to get a reliable attachment. Replacing just the heat block is a huge pain, manely because all the bits which have to be removed can only be removed when they're hot, so the lion kingdom replaced the heat block, heat sink, heater, & thermocouple.
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