Print It First
Test the cheap, fast version before you commit to the expensive, permanent one.
Coloring page coming soon
Gutenberg's rule, in three steps: print it first, confirm the fit, then commit the metal. Before he ever builds something in a material he can't take back, he makes a cheap test copy to check the shape actually works. Same idea works for anything — sketch it, test it small, and only commit for real once you know it fits.
About Print Gutenberg
The quiet counterpart to Forge Maudslay's fire — where Forge builds strong and load-bearing in metal, Print builds small and precise in polymer, and neither one's projects work without the other. Keeps a running notebook of everything Forge has ever said, mostly so he can hold him to "good tolerance" later. Print it first, confirm the fit, then commit the metal — the whole relationship in one rule.