The headset prototype graveyard

I’m still following the dream of a super-lightweight non-environmentally shitty, shippable by envelope headset design based on Google Cardboard. The other approaches to google cardboard that I’ve seen rely on glue or really lame tabs. It’s not stable enough to support a camera without using very thick card, and it makes self assembly irritating. After…

Inverting screen colours on Ubuntu 20.04 LTS under Wayland

So, I finally gave up trying to use XOrg on my 4K laptop/external monitor setup. The fractional scaling was hopelessly broken. I switched to using Wayland instead – and joy of joys, everything works out of the box! Unfortunately, this broke the ability I had setup to invert my screen colours. That’s not a “nice…

Exporting multiple layers in Inkscape – streamlining the headset design

Until now I had a very heavyweight process for specifying the headset for eyeskills, using OpenScad and lots of geometry. Now that I’m gradually working my way back into the project with new ideas and some fresh motivation, I want to streamline this dramatically so I don’t get bogged down in tool chain hell again.…

Affordable EyeTracking – working towards a new camera PCB

We keep coming back to the basic fact that we need to know what the eyeballs are doing. This requires an eye tracker which does what we want (particularly, with a software API which doesn’t assume both eyes are coordinating in the usual way!) at a price we can afford. The corollary to this is…