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Editing Step 6 —

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You need to hot-tighten your HotEnd again before using it.

As before, heat up your printer to 285°C (240°C for the Lite6) and let it rest at temperature for a minute.

Gently tighten the nozzle whilst holding the heater block still with a spanner and using a smaller 7mm spanner to tighten the nozzle. This will tighten the nozzle against the Heatsink and ensure that your hotend does not leak.

You want to aim for 3Nm of torque on the hot nozzle—this is about as much pressure as you can apply with one finger on a small spanner.