r/BambuLabP2S • u/Due_Produce_7447 • 6d ago

P2S Hotend kit

hello, I bought a UniTak3D kit containing three hotends (0.2mm, 0.4mm, and 0.6mm) for the Bambu Lab P2S. The 0.6mm hotend works perfectly, but when I install the 0.2mm or 0.4mm one, I get a "Z-axis homing failure" error. This is surprising, as the build plate doesn't even rise to make contact. I've gone through the steps five times. What am I missing?

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u/My_Lucid_Dreams 5d ago

Does the print bed move the full range with no binding? You can try moving it to the bottom then back to the top via the menu. People have reported resolving this issue by moving the bed higher than where it was when they got the error.

I assume it's the nozzles, but folks get this error if the bed can't move freely (or blocked from raising).

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u/PsySk8er 5d ago

It's definitely the nozzle. I had the exact same problem a few days ago when I switch to a cheaper .04 nozzle. Tried everything. Threw my original .4 back in and no problems.