I work at Master Workholding using Solidworks (a design software) New for this year was the option to export your 3D model into a format for 3D printing. We actually use printed plastic molds to make hard rubber jaws.
I lost the link but you can even get printed metal parts now! The drawback is tolerance. Currently its about. 010 + or - for every inch of material length. When this gets worked out, printing assembled axels will be possible!
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