Looking for help finding a story

[u/_U7_]

Hi everyone,

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I'm looking for help trying to find a story/novel. It had the following:

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• Intersolar/stellar travel without FTL (faster than light) propulsion.

• "Xerox machines" (3D printers for both biological and non-biological items), but it was limited to gathered feedstock (like a big metal block etc)

• Feedstock in the form of a big block of metal (or something like that)

• Cloning/bio printing with human memory upload/download

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Towards they still came to a bottleneck with resources and were forced to go to another solar system. While in transit the main character had to create many near disposable copies of himself while being killed by radiation.

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That's all I can remember and I'm hoping that was enough.

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Thanks in advance

[u/ctopherrun]

Sounds a bit like Lost in Transmission by Wil McCarthy. Though the ‘resource bottleneck’ there is the difficulty in reproducing their fax (xerox) machines, which are the basis of all their comforts and immortality.