self tapping screws

Studded Bicycle Tires and Chains

Traction is all about digging into the terrain. When the ground is covered in snow and ice, rubber just doesn’t cut it anymore. Studded tires can really improve your bike commute in the winter months or allow you the adventure of off-road riding in winter months. The addition of transverse chains on the rear wheel […]

“Chopsticks” the Spider Robot

Multi-limbed robots such as hexapods can be very complex and expensive. This is a relatively cheap and simple 8-legged robot made with chopsticks, Polymorph and an Arduino-compatible controller. Most of the servos cost under $8 if you shop around. I have seen the 12Kg/cm servos for as little as $13 at HobbyKing. The construction […]