Laser projector update

Looks like my hard disk laser projector made the MAKE blog. Sweet I’ve been hacking on the software for the projector quite a bit this week- mostly on the code responsible for importing and converting vector graphics data. In a typical laser projector, you have a high-speed DAC connecting a pair of analog servo amplifiers to a computer. The computer reads samples out of an ILDA file, maybe applies some effects in real-time, then sprays them... Read More

Times New Roman at 532 nanometers

After running the ILDA test pattern at only 4K on my hard disk laser scanner, I really wanted to see how well the projector would do with the kinds of “real” vector graphics that I expected to be able to display. Most commercial ILDA frames are way too complicated for it. As I mentioned, the control software for the projector still mostly sucks. I have a hacked-together ILDA frame importer, and a little interactive scribbly-widget. I really... Read More

Hard disk laser scanner at ILDA 4K

I should have blogged about this long ago, as I’ve been working on it off and on for about three months now, but today I reached an arbitrary milestone that compels me to post I’m still actively working on this project, so I’ll try to make updates occasionally, and if I end up putting together an actual project web page I’ll link it from here. My latest tinkery hardware and embedded systems project is a homebrew laser scanner.... Read More