This German-language video tackles a problem that any CNC hobbyist who has dabbled in 4-axis work knows intimately: every time you mount a rotary axis (Drehachse) onto your machine bed, you have to painstakingly re-zero the workpiece origin. Over dozens of jobs, that setup time becomes a serious productivity drain.

The maker behind Damit Späne fliegen walks through a custom fixture he designed for his Stepcraft M 1000 desktop CNC that lets the rotary axis drop into a known, repeatable position — meaning the machine's zero point is preserved between sessions. He shows the construction details, how it clamps to the T-slot bed, and why the alignment references matter.

This is exactly the kind of small-shop engineering content that's hard to find: a real maker solving a real workflow problem with a fixture he built himself, rather than a product showcase or a satisfying-cuts montage. If you run a hobby CNC and have ever sworn at the tedium of rotary setup, the design principles here transfer to almost any small router. Even without German, the visuals make the geometry clear.