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Why prime tower instead of poop? (lemmy.world)
submitted 5 months ago by to c/3dprinting@lemmy.world
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I know you can disable the prime tower at a trade off in quality, but why not poop out the priming instead of wasting build plate space?

Am I missing a setting in Orca?

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[–] [S] 1 point 5 months ago (3 children)

Hell, even the Snapmaker U1 uses a prime tower,

I have a U1 which is what prompted this post. But Snapmaker doesn't "use" a Prime tower. They took Orca and kept all the defaults. I was thinking that they might have intentionally kept the prime tower default because they don't have a real poop chute but only a poop bin which would quickly overflow if they primed into it.

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  • [–] 2 points 5 months ago (2 children)

    I don't have one, but I expect they kept that default setting for the reasons outlined above, but because of a lack of poop chute.

    I have a Creality Hi, and a 3D-printed poop chute off the side of the printer holds plenty of poop for typically-sized 4-colour full-purge prints.

    For really huge prints, I empty once mid print, but those prints last for days anyway, so it's no big deal.

    With no need for colour/material purging, I would expect a purge tray to be plenty for a multi-toolhead printer. I can't imagine it purges much?

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  • [–] [S] 1 point 5 months ago (1 child)

    The prime tower probably could be much smaller. Its size is mainly structural so that on a tall print it stays stable. But the poop tray on the U1 is pretty small. I could see it needing to be emptied after every large multi color print if it primed into the poop tray.

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  • [–] 1 point 5 months ago

    I suppose that makes sense. I almost entirely print short things, and when I do taller prints, it's always single colour because it's a functional piece.

    I'm not interested in giant 3D print display art, personally, so I've never run into that challenge. Hell, I set my prime tower brims to 0 just to make it easier to get off the plate.

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