Model Remix (Please read it all)
Bin dimensions: 220x220x350mm (or 220x220x450mm with the extension) so it fits quite a LOT of mess before needing to be emptied.
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The “Can” can be used by itself.
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The “Top” needs supports only in the holes and down of them.
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I think the “Lid” prints better on his side, and with a modifier to fill the back part with more infill, so it can go back to his place. Needs supports and maybe will need a bit of work to remove them and sanding but the ugly part will be on his side so you can't see it when mounted…
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You need two “Pins”, remove the brim and simply push it through the lid hole deep into the hole of the top piece, and you are good to go.
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The “Extension” gives 100mm extra high, it comes in a separate model because the print volume of the printer, it keeps in place by an insert in the “can” but i glued it to be permanent. I highly recommend to print the body base and the extension from my tested 3mf, i cannot assure you the right fit if you slice with another settings.
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I uploaded the .3mf/print-profile files with the settings. All the parts are on the same profile, just choose to print the plate you need.