3DPrinting

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Why do some 3D printer beds require turning knobs on the bottom for leveling? (lemm.ee)

submitted 6 months ago by [email protected] to c/3dprinting

31 comments fedilink hide all child comments

On my ender 3 I have to turn the knobs on the bottom for leveling.

I just picked up a Bambu Lab P1S and it doesn't.

Fundamentally, what is different that allows the P1S and other printers to get away without it?

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[–] IMALlama 9 points 6 months ago

It's worth noting that there are a few bed leveling methodologies:

Full manual, such as the stock enders of yore
"Automatic leveling" without a means of actually getting the bed in plane with the gantry. An ender with a touch sensor falls into this category. So does the X1 actually, since the three lead screws share a common z motor. As the bed gets out of plane with the gantry and/or your bed warps the printer will compensate. Ideally the bed and gantry are designed in such a way that they can't become that out of plane (for example, the bed is fixed)
"Automatic leveling" with a mechanical mechanism to get the gantry and bed in parallel planes. This is what Vorons, Rat Rig, etc do. They'll also benefit from a bed mesh, since most beds aren't perfectly flat