From a sentence to a printed part

A pipeline that turns “I need a tray 3 by 2, two units tall” into a real object.

I describe a part in plain language with real measurements. It gets modelled in OpenSCAD and sliced from the command line with a real slicer, using profiles I tuned myself. The result lands in a folder that a system service watches, and that service adds it to the printer's queue.

Two rules

A language model never writes G-code, the slicer always does. And nothing in the pipeline can start a print: the account that uploads can list and upload files and nothing else. Someone standing next to the printer presses start.

The first part was a storage tray, and it fit on the first try.

HomelabTwo Linux servers in my house, running everything I'd otherwise rent from someone else.
An AI agent that can't break my serversHow I let an AI coding agent manage my infrastructure without giving it the means to wreck it.