I’m talking to a film producer friend about a make-up prosthesis that includes small lights that need to be remote-controlled. Here’s some thoughts on practical design and safety.

Trade-offs loom large in a project like this; the practicalities of filming and production is one of the most interesting parts.

There’s lots of documentation and chat on the web about OpenSCAD.

This is good, but it also means some of the things I want to remember are scattered all over the place.

So here is a collection of some of useful reminders for OpenSCAD.¹

This is a collection of notes on change ringing. Will be occasionally updated.