Coin Sorting Machine from Cardboard For this project you need cardboard, cutting knife and glue. The most important part - to ...

Discover the ultimate DIY Automatic Coin Sorting Machine made out of cardboard! In version 2.0, you'll need just a few materials: cardboard, a cutting knife, a battery, an electric motor, a small nut, ...

The eighth grade class at Springhouse Middle School took its first six-week tech class two years ago. This year, they put the skills they learned in that sixth-grade class, and another six weeks last ...