With the right size determined planning the circuitry makes sense. Cabling must be calculated. All components must be connected safely and cleanly to each other. More…

Leather is one of the oldest and most durable materials humans worked with. Just because of curiosity I made some small things from leather. This also enriched my experience. More…

After two years of testing with different small panels it is time to get bigger. I'm planning to install a larger system for personal use. Size matters. More…

The bike light has a built-in rechargeable Li-Ion battery. But it doesn't work anymore properly. Instead of lasting a few hours it turns dark after a few minutes. Charging nevertheless works properly. More…

Illustrates the steps to create a clock face with Gimp. Not yet translated. More…