Commit 46e6d445 authored by Erik Strand's avatar Erik Strand

Fix spelling

parent 73b8a6c5
...@@ -45,7 +45,7 @@ Since we'll represent the waveform-to-filter using force, the input has to be a ...@@ -45,7 +45,7 @@ Since we'll represent the waveform-to-filter using force, the input has to be a
The damping could be provided with a viscous fluid. But, I don't know of viscous fluid dampers that can adjust their viscosity on the fly, which we'll need to do if we want to sweep the cutoff frequency of our filter. Which obviously we do. I only know of one other way to get a resistance force directly proportional to velocity: eddy braking. So we'll need an electromagnet (vary the current to vary the resistance) and an aluminum rail. What could go wrong? The damping could be provided with a viscous fluid. But, I don't know of viscous fluid dampers that can adjust their viscosity on the fly, which we'll need to do if we want to sweep the cutoff frequency of our filter. Which obviously we do. I only know of one other way to get a resistance force directly proportional to velocity: eddy braking. So we'll need an electromagnet (vary the current to vary the resistance) and an aluminum rail. What could go wrong?
The capacitor, luckily, just beomes a spring. Phew. The capacitor, luckily, just becomes a spring. Phew.
Now a normal RC filter contains no inductor. It would be difficult to make my mechanical filter's moving parts massless<sup>[citation needed]</sup>, but luckily this isn't strictly necessary. All RC circuits contain some self-inductance, as all mechanical circuits contain some mass. I'll just try to keep my filter's mass to a minimum relative to the damping and spring factors. Now a normal RC filter contains no inductor. It would be difficult to make my mechanical filter's moving parts massless<sup>[citation needed]</sup>, but luckily this isn't strictly necessary. All RC circuits contain some self-inductance, as all mechanical circuits contain some mass. I'll just try to keep my filter's mass to a minimum relative to the damping and spring factors.
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...@@ -15,7 +15,7 @@ For fit, there are three main parameters: thickness, kerf, and epsilon. Thicknes ...@@ -15,7 +15,7 @@ For fit, there are three main parameters: thickness, kerf, and epsilon. Thicknes
![](/img/02_params.jpg#c) ![](/img/02_params.jpg#c)
Cutting proceeded smoothly. Some of the connectors (and one of the tiles) ended up with critical geometry inbetween corrugations, making them unusably weak. Cutting proceeded smoothly. Some of the connectors (and one of the tiles) ended up with critical geometry between corrugations, making them unusably weak.
![](/img/02_dodecasoup.jpg) ![](/img/02_dodecasoup.jpg)
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...@@ -13,7 +13,7 @@ Not surprisingly, there aren't many vector images of Claude Shannon online. So I ...@@ -13,7 +13,7 @@ Not surprisingly, there aren't many vector images of Claude Shannon online. So I
![](/img/03_source_collage.jpg#c) ![](/img/03_source_collage.jpg#c)
Despite all the detail, the vinyl cutter only took a few minutes to cut my design. Weeding, however, took two hours. Finally I removed a panel from my desktop's enclosure and transfered the image. Despite all the detail, the vinyl cutter only took a few minutes to cut my design. Weeding, however, took two hours. Finally I removed a panel from my desktop's enclosure and transferred the image.
![](/img/03_weeding_collage.jpg#c) ![](/img/03_weeding_collage.jpg#c)
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