Losing your marbles....

I made this from some bits of wood, nuts and bolts, and some metal rods for rails.

Useful for sorting that mix bag of marbles or ball bearings into sizes.

Roll the ball bearings from the narrow end and it will then fall into the sorting 'boiling tube' tray

The metals rails can be adjusted for larger diameters. Sorted!

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That looks like fun. We never let different sized marbles or ball bearings go out on the same lesson so luckily we don't have the issue of them getting mixed. Last time I had to separate mixed marbles was after I'd picked them all up off the floor having dropped the tray as I was removing it from the racking! :laughing:
 
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