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Solar lamp with reused lithium cells

This tutorial allows you to make a solar lamp equipped with a USB charger. It uses lithium cells that are reused from a old or damaged laptop. This system, with a day of sunlight, can fully charge a smartphone and have 4 hours of light.

• Easy
• 3 hour(s)

Ram pump

The purpose of this tutorial is to facilitate the understanding, design, manufacture and installation of a water elevation system called "Ram pump".

• Easy
• 2 day(s)

Batteries recovery

Recycle computer battery cells to create a photovoltaic lamp.

• Medium
• 3 hour(s)

Dry Toilets For Family

Dry toilets for domestic use.

• Easy
• 2 hour(s)

Cultivation of oyster mushrooms

Domestic cultivation of edible mushrooms.

• Medium
• 1 month(s)

Solar Generator Trailer- Electrical System

This tutorial presents the sizing and construction of an electrical system for a solar generator (1 kWp or ‘kilowatt peak’) which can be moved by bicycle. This structure was designed to fit on the CHARRETTE, an assisted trailer designed by the Véloma association, whose plans are freely available.

• Medium
• 3 day(s)

Plastic pyrolyzer

Produce fuel from plastic

• Medium
• 4 hour(s)

Water - Biosand Filter

The biosand filter is a household water filter that makes dirty water drinkable.

• Medium
• 1 day(s)

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