Fun & Games

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

30MPH electric mountain bike

MAKE subscriber Jennifer Holt of Columbus, OH, wrote in to share her rather overpowered electric mountain bike, running on a 48V motor powered by a homemade battery pack consisting of 144 3.3V lithium ion cells. Data from the battery monitor is logged to an SD card. This is the second of the two electric bicycles […]

Lego soccer table

Lego soccer table

Fra Fondi sent us info on this awesome soccer (foosball) table, made entirely of Lego parts, and programmed and controlled (sounds, score-keeping) with the Lego WeDo kit. Sariel tells us that: “Counting the game score and returning balls to a box are both fully automated. The actual game remains, obviously, fully manual, with eight players […]

Smartphone-controlled NXT robot

Boris Smus, a student at Carnegie Mellon, built this elegantly simple robot that uses a smartphone to interpret commands from Twitter. A few projects around the internet use an Android phone to control the Lego Mindstorms NXT brick. Most involve an ugly hack in which the phone communicates with a computer over WiFi, and the […]