New GM10 wheels and combo deal!

Here's a nice message from Jack Buffington resulting from our recent trip to Robolympics: "Hi. I just wanted to say thanks to Dave for tipping me off to those new motor/gearboxes that you are selling. He sold two of them to me on Saturday. On Sunday I won the ribbon-climber event using the one of […]

Now that the season of mass gift giving is (temporarily) over, publishing the details on this special gift for a wedding anniversary will not ruin a surprise. So I figured I'd share this personal project that uses simple but smart electronics.

Look! Bird (-shaped bullets) made holes in bird... feathers! Well, not quite, although that would have been awesome too. Actually we were doing some nitrogen-assisted laser tests on various regular, i.e. boring materials, such as plywood and mat board. Then I came across some feathers and here's what it turned out to be: Now that […]

I had been giving some advice to Mark Malmberg about some art he's been putting together. Wanna see a killer huge solar-powered hanging mobile? From the builder himself: This piece has been a test piece and learning experience. I'll show it in a couple of months at a place called the Lawrence Hall of Science […]