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Far as I know, it’s mostly due to the oils from your skin creating a layer on the build plate that, essentially, lube it up. So while the build plate can look clean, it most definitely isn’t. The cleaning of the plate is more so to remove the oils than anything else.

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Tuuktuuk@piefed.ee ⁨1⁩ ⁨week⁩ ago
Ah, so the object slides a very little bit, causing printed filament to be in a spot where there should be none yet, which produces a tiny hill that might even slide another quarter a millimetre and gather even more filament on top of it, at which point the object to be printed touches the extruder?

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- Dzheyk@sh.itjust.works ⁨1⁩ ⁨week⁩ ago
  Yes? But also like…the extruder is pooping onto a sheet of what is now ice, depositing it in a place it now refuses to stay. As it changes direction, the extruder can run into the loose filament, sticking it to the extruder, expanding upon the surface area of what is now hot metal and plastic for the extruded filament to stick to.
  
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