Just a small DIY to check what is heavier or lighter for my wife (who is a preschool teacher)

Let see how it balances...

 

Balance very basic made of 2 pine circle halves (18mm thick and 18cm length) and a pine slat (18mm thick and 80cm length).

The slat rests on those 2 semicircles with the help of 4 dowels (6mm)

Needed tools  : 

- A drill

- A wood bit 6mm 

- A jigsaw

- Wood glue

- A sanding sponge

- A file (to smooth the end of the slat)

Here is the result :