projector

Make: Projects – Glass Bead Projection Screen

Make: Projects – Glass Bead Projection Screen

Hereโ€™s a method for applying a high-gain optical projection surface using common, inexpensive materialsโ€”specifically, flat white interior latex paint and glass sandblasting media. It began as a series of experiments to produce a DIY โ€œscreen paintโ€ by directly mixing these two ingredients. Though failing in themselves, these tests led to the serendipitous discovery of this process.

DIY pillbox laser projector

DIY pillbox laser projector

What do you get when you combine a laser pointer, pillbox, and an Arduino? If you’re maker Raul Aguaviva, you’ll get an awesome DIY laser projector, of course. In addition to its relatively spartan design, the creative use of a heptagonal pillbox for a polygon greatly reduces the overall cost and complexity of the device.