Spotted at the recent Cedar Rapids Mini Maker Faire by Steve Hoefer. Looks like a piece of hardboard with a circular hole in it, lined with bike chain, to make an improvised “ring gear,” with variously-drilled chain gears and sprockets that roll around inside it to guide the pens. A similar idea was published by […]
The Missus, a mini (2-meter) autonomous sailboat, will compete in the 6th International Robotic Sailboat Championships this June, in Vancouver, BC. We are a group of Memorial University students who are building an autonomous sailboat to compete in the Sailbot and World Robotic Sailing competition. The team is made up of students from all MUN […]
Eric Hagan of ITP demonstrates “Cycle”, a stationary bike that’s mechanically connected to giant wheel with scenery sculpted upon it’s circumference.
JaxPaboo, AKA Pat Booth of Odessa, FL, wrote an Instructable showing how to hide a bike key inside the fork of the bike, using a wine cork. (I wonder if painting the cork to match the frame would be a good idea?)
Worldwide Cycling Atlas produced this excellent video about Maya Pedal Asociación, a Guatemalan organization which has been repurposing bicycles into machines since 1997. Created because of the expense and scarcity of electricity in the municipality of San Andrés Itzapa, their Bicimáquinas are pedal-powered pumps, blenders, threshing machines, and washing machines. They’re doing great work and […]
MAKE pal Dino Segovis brings us this handy tutorial on running a stepper motor in “reverse,” i.e. turning the shaft mechanically in order to generate electrical power, instead of the normal usage. He writes: Any electric motor will also output a voltage when it’s freely spinning. Stepper motors are much better at this because they […]
This colorful bike rack made from old bike frames was spotted in New York City by a BikeHacks reader. According to him, they were made by a local metal fabricator in Flatbush neighborhood of Brooklyn. What an excellent way to put scrap frames to good use!
