Flashlight designs for workshops in Ukraine

[ghost]

We are seeking nice designs for flashlights. In best case open source and already developed with e.g. CAD-files and schematics. Please help us to find designs in the web or send us your own flashlight design.

[vektorious]

Here is one: https://github.com/vektorious/cm-flashlight

Edit: Some more information:

• we use the kit in school workshops with kids. It is really easy to build
• we will work on creating proper instructions including video tutorials in the first half of 2023. If somebody would be up to helping translate the instructions into Ukrainian, drop me a message (English/German version is planned so far)
• We already thought about creating a rechargeable version of it using super capacitors and low-voltage LEDs

[ghost]

Thank you! That's a pretty nice design!
I saw you have an English instruction pdf already. Maybe anyone could already start to translate this one... https://github.com/vektorious/cm-flashlight/blob/main/instructions/instructions_sideswitch_EN.pdf

[vektorious]

Well, yes, but it's not for the latest version. The changes are minor and rather cosmetic, but still..
We wanted to rethink the instructions to some extent, but a translation of the old instructions wouldn't be completely useless because most of it probably can be reused.

[ghost]

Ok, makes sense. But yes, let's start to translate the pdf. And then update the text later when you are ready with your upgrade.
@sandra-GIG: Could your intern translate this PDF?

[oiianka]

Very cool! Now I want to make such a flashlight

[doutorsocrates90]

Pedal powered generator

A pedal powered generator is a Human Powered Energy Generator (HPEG) that provides a method of generating electricity employing a modified exercise bike for use in energy storage and running household appliances. Human/mechanical energy is converted into electrical current using a Direct Current (DC) generator connected by a fanbelt to an exercise bike flywheel.
https://www.appropedia.org/Pedal_powered_generator

[doutorsocrates90]

Photovoltaics: https://www.appropedia.org/Photovoltaics

[doutorsocrates90]

Solar distillation

From UTC Solar Distiller.
Solar distillation uses solar energy to evaporate water and collect its condensation within the same closed system. Unlike other forms of water purification, it can turn salt or brackish water into fresh drinking water (e.g. desalination).

https://www.appropedia.org/Solar_distillation

[doutorsocrates90]

Solar hot water system

Solar hot water describes active and passive solar technologies that utilize the freely abundant solar thermal energy to heat water for the desired application

https://www.appropedia.org/Solar_hot_water_system

[doutorsocrates90]

Solar cooker

A solar cooker converts sunlight to heat energy that is retained for cooking. Sunlight is the "fuel".

https://www.appropedia.org/Solar_cooker

[doutorsocrates90]

Rocket stove

A rocket stove is a variety of wood-burning cooking stove with higher efficiency than other traditional ovens due to better insulation and a better combustion process. They function under a similar principle as rocket stove mass heaters. Most rocket stoves are easy to build and can be made with low-cost materials.

https://www.appropedia.org/Rocket_stove

[doutorsocrates90]

RAINWATER HARVESTING

Common rainwater harvesters which are usable in practice and which can be built DIY

https://www.appropedia.org/Rainwater_harvesting

[doutorsocrates90]

Water quality testing

https://www.appropedia.org/Water_quality_testing

[doutorsocrates90]

Water filter

https://www.appropedia.org/Water_filter

[doutorsocrates90]

one litre of light:

https://literoflight.org/