Commit d60ce71c authored by Sam Calisch's avatar Sam Calisch

Update README.md

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......@@ -17,8 +17,8 @@ We simulated several arrangements to drive a membrane for a speaker. Coil-coil
Given this, we decided to use arrays of neodymium disc magnets, which are cheap and easily available in a variety of dimensions. Planar magnetic speakers often use flat bar magnets, but these are more expensive and difficult to arrange on the substrate. The design challenge is to route copper coils to perpendicularly cut the line segments between all adjacent magnets, while minimizing the additional run (wasted copper) and maintain symmetry of the membrane (so the deformation modes aren't deformed). Below is a design with three-fold symmetry that can be extended to an abritrary radius by extending the spiraling pattern.
<img src="img/hex-spiral-screenshot.png" height=400px>
<img src="img/hex-spiral-coil.jpg" height=400px>
<img src="img/hex-spiral-screenshot.png" height=300px>
<img src="img/hex-spiral-coil.jpg" height=300px>
Below is plotting of this pattern onto 1 mil kapton tape.
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