Search Results for: pedal power

Human Powered Electric Guitar

Musician Germán Canyelles uses Low-tech Magazine’s bike generator to power his electric guitar. The guitar amplifier and pedals are plugged into an inverter connected to the 12V circuit of the bike generator. No batteries are used. Recorded at Akasha Hub, Barcelona.

Bike Powered Catamaran Control

In the 2017 America’s Cup, the Emirates Team New Zealand introduced stationary bikes instead of hand cranks to power the hydraulic system that steers the boat. Because our legs are stronger than our arms, pedal powered ‘grinding’ allows for quicker tacking and gybing in a race. The innovation could also be useful to reduce the required manpower for a new age of sail.

Human Powered Ferris Wheel

human-powered-ferris-wheel

You could power a ferris wheel with pedals and cranks — but these guys add gravity & guts to the power mix. The human powered ferris wheel. Picture credit: Dirty Wall Project. Thanks to Giuliana Fornaciari.

Solar Powered Grain Mill

solar milling

“Graining cereal crops is a basic, century old business and it will continue to be as important as ever before for centuries to come. Before the age of oil grain milling was entirely based on renewable energy. It was either done by wind energy, hydropower, animals or manpower. For the last century the traditional grain milling has been mainly replaced by electricity and fuel driven milling.”

“The Solar PV Grain Mill works to the same principle like any conventional, electrically driven mill. The mill has a very efficient 3-phase AC motor which is directly coupled to the graining system. The main invention of the system is, and that makes it unique among PV systems, that it is a “direct drive system” without the need of batteries. The Solar PV generator converts solar radiation into electricity, and the generated electricity is directly feeding the motor drive. There are no additional conversion losses, such as energy storage losses in batteries, battery maintenance or replacement costs, which are a common problem in conventional Solar PV off-grid systems.”

Read More: Solar Milling. Via Engineering for Change.

I would like to add that the direct drive system also eliminates the high energy use caused by the production of the batteries, which can make solar PV off-grid systems everything but sustainable. Therefore, storing work instead of energy — the solar mill only operates when the sun shines — is a very interesting strategy in sunny regions.

Related:

Bike-Powered Treehouse Elevator

bike-powered-treehouse-elevator

Ethan Schlussler of Sandpoint, Idaho, built this clever bicycle-powered treehouse elevator to make it easier to reach his nearly 30-foot-high treehouse. “I got tired of climbing a ladder six and a half million times a day, so I made a bicycle powered elevator to solve this problem,” he writes. See and read more at Make. More pedal powered machines.

Human Powered Washer & Spin Dryer

Giradora foot powered washer dryerThe GiraDora is an interesting design for a foot powered washer and dryer that costs less than $40. More here:

“GiraDora is a blue bucket that conceals a spinning mechanism that washes clothes and then partially dries them. It’s operated by a foot pedal, while the user sits on the lid to stabilize the rapidly churning contents. Sitting alleviates lower-back pain associated with hand-washing clothes, and frees up the washer to pursue other tasks. It’s portable, so it can be placed nearby a water source, or even inside on a rainy day. It reduces health risks like joint problems, skin irritation, and mold inhalation. Most importantly, it uses far less water and cleans clothes faster than conventional hand-washing.”

Hat tip to Kaan Ozdurak.