Fun & Games

The latest DIY ideas, techniques and tools for bikes, rockets, R/C vehicles, toys and other diversions.

Lego Technic bridge launcher

This neat model by Peer Kreuger wins points for its excellent gearboxes — for instance, the bridge has no servos on it, it extends and contracts via a servo on the vehicle itself. The Stilzkin EXT3 Bridge Launcher is used to deploy bridges to cross rivers, small chasms or similar obstructions. Placing the bridge takes […]

Get your smash on at “sport” bottle recycling center

Get your smash on at “sport” bottle recycling center

When I was still living in Dallas, our local recycling center included a giant steel dumpster, open at only one end, with an elevated platform you could climb up to chuck your glass bottles in. I was in high school, then, and it was pretty common, when we were bored, to go down there on the weekend and pass an hour or so smashing glass bottles into the dumpster just for the fun of it. You’d see “grown-ups” there doing the same thing, and more than once perfectly “respectable” suburban adults would see what we were up to and join in, which inevitably put a big grin on everybody’s face. I’m sure this kind of impromptu bottle-breaking game happens naturally at recycling centers all over the world.

Lego pressure sensor

Lego pressure sensor

14-year-old blogger and LEGO fan Joey Kelly of Stayton, OR lucked into a pressure sensor from Dexter Industries, and wrote up a detailed report. The dPressure is a very interesting sensor. It has two nozzles: the first on can sense pressure in both PSI (Pounds per Square Inch), and kPa (Kilopascals). The second nozzle can […]