Spirograph with bike parts
Instructables user hunrichs made this clever spirograph rig out of old bike parts and a piece of pegboard. This could be a good way to learn about gear ratios!
Fun & Games
The latest DIY ideas, techniques and tools for bikes, rockets, R/C vehicles, toys and other diversions.
LEGO Turing machine
Here’s a great LEGO based Turing machine, Denis writes – I chose to implement in Lego a slightly different version of the original Turing machine. Instead of having a bi directional tape, it uses a stack. When the symbol beneath the stack is read (and removed), the machine changes “states” and can add zero, one […]
TV wave visualizer
Evan sent in this classic hack for turning a television into an oscilloscope-esque wave visualization device. Caution – this project is strictly for those with experience working with mains supplies and properly discharging the voltage stored in television electronics! I’ve personally had successful results with small portable battery-operated TVs. – Censtron Wave Vessel
Wall Racers: Your home is a racetrack
The builder claims these cars will find the racetrack in any room and race it! How? It seems these little racecars use ultra-sonic sensors and a Picaxe to keep them a predetermined distance away form the walls. They keep going around the room, creating their own racetrack. Looks like a lot of fun! Read more […]
Wooden bike gallery
More “cocopunk” goodness, here a round-up of wooden bikes from around the world on Kevin Kelly’s Street Use. Wooden Bikes Related: Is Gilligan the next Jules Verne? Wooden bike
Sing-Along Simon game
Here’s a different approach to the classic Simon game – Sing-Along is a musical tone memory game in the tradition of the popular ’80s game Simon (Hasbro). Designed for one to three players, the ATtiny12 microcontroller-based device plays a random sequence of notes, and then listens for the player(s) to mimic the sequence by singing […]
Another Guitar Hero bot…
…with circuit schematics and PCB layout. Near Future Laboratory
