shaping pine wood

Creative marbling machine prototype

There are many marbling machines on the internet. Most of them are table top. Shawn Yeo, who founded VINCO, an educational company that specializes inĀ  creating environments that develop students to be independent learners, leaders and thinkers through tinkering approached me for this project.

Shawn explained the project to me enthusiastically. He wanted a marbling kit which could be attached to a whiteboard via a magnet. A marbling machine allows a marble to go through a set of obstacles, making a little noise in the process. They are also very interesting to watch.

The challenge of this project is the very very thin pieces. There are a lot of parts that are only 3mm thick.

Wave like wooden structure

This wave like structure was interesting to make. The shape was first cut on a scroll saw before being glued together so that the front and back are identical.

Diagram showing 2 grooves routed on a back of a maze like obstacle.

These 2 grooves are where the magnet will sit in.

Maze like structure

Parts were individually cut before gluing it all together with wood glue. Realised that the trick to doing 3mm cuts on a table saw is to cut on the other side, not between the blade and the fence.

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With the circular part only 3mm thick, it was a feat to cut. The trick, use a very slow speed, <500rpm on a drill press. I did spoil quite a number of them before getting it right.

Triangle shaped block with grooves on each side.

The triangle has a drain on each side.
Note the very thin front.

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This was quite interesting to make.I had to drill the hole at exactly the correct spot, then shape the rounded top on the router table.

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