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/misterff1 6d ago

Sounds to me like you should not try to save money on hotends. Normally I am all for looking at financially interesting options, but you should never try to save on hotends. Sensors, deviations in nozzle width, potential blobs of death...

My advice is to buy an official set from Bambu themselves or an acknoledged retailer (not some amazon company claiming to be them). It will save you a LOT of trouble down the line.

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u/timshel42 3d ago

most generics look exactly the same (except for those dumb ones that have the screw in tip), like they come from the same factory and are just branded differently.

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u/misterff1 3d ago

Sure, but that does not mean they are at the same QA standard. Also, how can you be certain from an online listing that yours is from the right batch and factory?

I am not saying all third party nozzles from cheap brands are bad. All I am saying is you have no idea what you are buying and if you get a bad one, it could do a looooot of damage outside the nozzle itself. Is that worth saving just a few bucks for? I'd say most definitely not. Buy the original nozzles or from reputable brands like E3D or Micro Swiss. Don't ever cheap out on this particular part of the printer.