alt Hacker NewsNot trivial, but not impossible either. Usually though the product would be designed in some CAD program, and when the shop customizes measurements they adjust them manually based on copies of the model. The "pro" way would be to have a parametrized version, but it's also trickier to create. I'm not 100% sure, but I'm getting the vibe the author picked up modelling/3D printing as they went along, so the easier route would be hardcoded values changed for each customer.
Creator here, Thanks for the kind words
It's been a really harsh and long process to CAD this model, it's also really complex to change measurements for it.
As I do wish to have a simpler version for customizing, for now by taking people orders I might either build a new parametric model, or have a growing "bank" of models and measurements to share for free like the main version.