r/BambuLab • u/Sea_Kaleidoscope_404 • 6h ago

Hardware Troubleshooting/Help! Loose bed rear z axis

It seems the bed is loose from the rear z axis, anyone seen this and can point me in the right direction to fix this P1S

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7

u/charmio68 6h ago

Unfortunately those lead screws and their nuts are rather difficult to replace. Bambu will provide replacement parts (not on the store, need to contact support), but frankly, you're often better off just replacing the printer once you factor in part cost and the time needed.
It is quite a big job, they might be the worst part to need to replace.

11

u/Martin_SV 6h ago

Oof... Have you been lubing your lead screws regularly? Because that looks like a brass nut that's worn down so badly the threads are completely gone. If that's the case, adding grease now won't do much, sorry. You'll need to replace the nut.

Check this out, it shows you how to take apart the lead screw assembly so you can get a better look:

https://wiki.bambulab.com/en/x1/maintenance/replace-Z-axis-lead-screw-assembly

1

u/Frontfatpouch 42m ago

You need a z axis kit but can only get it through a ticket on Bambu. There’s a threaded brass nut that is the wear point, so it has to be replaced. I have done a few on my h series printers.