The problem
The mini PC that runs my development server needed a home on a pegboard. A printable holder existed, but for a different machine, and it came as a single fused mesh rather than an editable design.
What I built
I used AI to work on the mesh directly. It resized the holder for the M6 Ultra, kept all eight pegboard hooks intact, and added reinforcement and a 137 mm capture strip to hold the machine in place.
Then I printed it. The first sleeve showed what the on-screen checks could not: it needed more support underneath. The design changed to match. That is the loop that matters with physical things, because a model can pass every check on screen and still be wrong in the hand.
Before any of that, I calibrated the printer, a Bambu Lab P1S. I saved a reusable profile for functional PLA, ran a flow calibration print, inspected it, and saved the pressure advance value it produced for the filament I use.
What you can see
The printed parts, and the profile that prints them.
The result
A repeatable loop for making parts that fit real objects: edit the geometry with AI, print, inspect, and revise.