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The first part I made was the bottom oscillator.
Refer to drawing #45GD-11 for details.
Picture one shows the pop can bottoms I filled with cement.
The next drum device I do I'll mix cement with sand at a ratio of 50/50.
I discovered later that this is necessary because the cement is now broken and leaking powder.
Refer to drawing #45GD-02.
The next three pictures show the ¼" plywood triangles I cut using a numeric control cutting(NCC)machine, three steel 1" ball bearings I bought from a car parts shop and two donut shaped magnets that lie in the center of the triangle (in attraction to provide the centering force).
I cut 4 plywood triangles and then glued two sets together.
Refer to drawings #45GD-01 and #45GD-12.
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