Editing Step 15 —
Prepare the PTFE tube

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The Bear extruder uses a PTFE tube length of 50mm. It is the same PTFE tube used for MK2S, MK2.5 (non-S) and MK3 (non-S). The original Prusa MK2.5S or MK3S extruder is using a PTFE tube length of 44.2mm which will be too short for the Bear extruder.

You should have prepared the PTFE tube during guide 1. Preflight check and disassembly. Make sure you have followed those steps.

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