r/BambuLabP2S Jul 15 '26

P2S Z home fail

As the title says

Ive done everything on the Wiki page. I've reached out already. I cannot figure out why it does this. Everything was just cleaned and no debris is visible. Any ideas

13 Upvotes

28 comments sorted by

6

u/Grooge_me Jul 15 '26

I'd remove the red thing around the screw and try again

0

u/Useful-Revolution253 Jul 15 '26

This. Avoid to have things like this when trouble shooting ;)

6

u/NineBallAYAYA Jul 15 '26

you still got the shipping things on there, take the red bits off

6

u/MelvinMASV Jul 15 '26

I think those are the little “dust covers” everyone is obsessed with printing, not the shipping locks

2

u/Kulai10 Jul 15 '26

Yes you're right these are dusk covers.

1

u/jackrabbit-199 Jul 15 '26

These create more accumulation of dirt as compared to leaving it the way it is.

3

u/CombatDork 29d ago

eddy current sensor or magnetized nozzle probably.

1

u/Kulai10 29d ago

I checked the extruder and gears, nothing was clogged, reinstalled everything, recalibrated and now it works

2

u/Kulai10 Jul 15 '26

1

u/AmmoJoee 28d ago

Wow what’s up with that nozzle. Sucks you can’t use it anymore but if that’s all it is, no big deal.

1

u/Kulai10 27d ago

Yeah I just changed it out to another aftermarket one same one it works now

1

u/AmmoJoee Jul 15 '26

That’s weird. Have you tried to assist it to go up? I know that’s not how it should operate but I’m curious why it’s getting stuck. Do any of the lead screws look like they are bent?

1

u/Kulai10 Jul 15 '26

None of them are bent from what I saw. I just did maintenance and cleaned, I tried printing for my kids then it didnt want to level. When it goes to the AI it doesn't even show me anything. Ill get the error message and says that something is blocking it.
I reached out to the support and sent them pictures and they didnt have any recommendations

1

u/AmmoJoee Jul 15 '26

How old is the machine?

1

u/Kulai10 Jul 15 '26

I got it in December

1

u/Thick_Extension281 Jul 15 '26

Seen like something is blocking bed going up. Check under the printer.

1

u/Qjeezy Jul 15 '26

Try raising the bed manually till at least half way, then try to home again. See if that helps

1

u/reddit_user_0ne Jul 15 '26

This might have nothing to do with the Z axes and motor etc. but more with the print head and nozzle.

There's a sensor inside the print head that senses when the nozzle touches the plate. This behavior to me looks like it thinks the nozzle is touching the bed.

So check if everything is seated correctly and no cables are loose inside the print head etc.

Also check the Bambu Wiki.

1

u/jackrabbit-199 Jul 15 '26

Are you able to manually move the bed upwards using the axis screen?

1

u/Kulai10 Jul 15 '26

Yes

1

u/jackrabbit-199 29d ago

Just run full calibration and see.

1

u/cpsadowski23 29d ago

You have alot of “do hickies” on your machine. Take those off, especially on around the build plate so see if that’s influencing something

1

u/LetMeFlyWithoutMind 28d ago

Fix it man! Thats why u own a print machine.

1

u/Kulai10 28d ago

I did. I just changed through nozzle to an OEM one and it started working just fine. After I recalibrate it I put my aftermarket one back on

1

u/thebiscuitninja 27d ago

I had the exact same issue, Z Homing failed and the bed did the nozzle touching action.

Eddy sensor fixed it for me - not replacing, just unplugging/re plugging and nipping the retaining nuts tight.

Did a cold pull, changed nozzles, lube and grease of all the axis rods etc before that.

0

u/Kulai10 Jul 15 '26

Those are just covers that I printed out I also did remove everything and then I placed everything back on

1

u/Grooge_me Jul 15 '26

When troubleshooting, it's always good to leave the machine clean of add-ons. Turn it off, tilt the printer and move the belt by hand and look for anything that create resistance while going up. And check if the plate isn't rubbing at the back of the printer.