Spinning Glass Simulation

I read recently about a question someone got asked in a technical interview for a mechanical engineering position at Apple. It went something like this: Suppose you had a rotating plate, like a lazy susan, and put a glass of water on it towards the edge of the plate. Suppose the plate started rotating, getting faster and faster, though the acceleration is slow enough that … Continue reading Spinning Glass Simulation

Mandala Coasters

I wanted to make a good friend of mine a house-warming gift. I wanted something that was elegant, useful, and took advantage of the free tools I had available: 3D printing, laser cutting, vinyl cutter. I saw some very cool 3D mandala designs on Thingiverse, but didn’t think they were particularly practical as coasters, neither do I think 3D printing coasters is particularly cost effective. However, … Continue reading Mandala Coasters