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A comment on Ask HN: Why are there no open source 2d printers?. Parent comment

Re:Ask HN: Why are there no open source 2d printers? by amelius on Thursday October 15, 2020 @11:13AM (#24789426)
> Printers are cheap and widely available

Then how about a printer that can print on a large wall? E.g. with spray paint.

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