Some related discussion in here: *Ask HN: Why did consumer 3D printing take so l... | Hacker News

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ChrisArchitect 40 days ago | parent | context | favorite | on: Is 3D printing being held back by an invalid paten...

Some related discussion in here:

Ask HN: Why did consumer 3D printing take so long to be invented?

https://news.ycombinator.com/item?id=42079086

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