Jan Zielonka

Jan Zielonka

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how to make free energy generator at home with magnet 1000% working - YouTube

how to make free energy generator at home with magnet 1000% working - YouTube

How to make a gear motor , mechanical system - YouTube

How to make a gear motor , mechanical system - YouTube

How to make gears - YouTube

Most people think of gears as big pieces of metal, but for a long time gears were mostly wooden affairs. In this video you& learn how to make small wooden gears that you can use in all sorts of complicated machinery oriented woodworking projects.

Understanding PLANETARY GEAR set ! - YouTube

The planetary gear set, also known as the epicyclic gear train, is one of the most important and interesting inventions in engineering.

Mechanisms - YouTube

Double cam and gear rack mechanism

A 3D model collection by James

A 3D model collection by James

German WW2 camera

German WW2 camera

Ancient Technology of Making Bamboo Crafts - Most Incredible Bamboo Woodworking Ever - YouTube

Ancient Technology of Making Bamboo Crafts - Most Incredible Bamboo Woodworking Ever - YouTube