Category

Computers & Programming

Linkage Program

Better Drawings of Links

There are currently two ways to show links in the Linkage software: The link is drawn as a polygon using the outer-most connectors to define the shape, and drawn as a solid object with the connector circles giving the appearance of holes within a larger polygon with rounded…

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Computers & Programming

Neural Network Experiment

I suspect that anyone reading my blog will notice that unlike other blogs, I tend to post about things I’m going to do, not things that I’ve done. My latest interest is in neural networks. I think that I have a good grasp of how they work aside…

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Linkage Program

Linkage Temporary Points

[Update: Scroll the update at the end to see new information about all of this] When I first wrote the Linkage software, I knew that if you rotate some points, that they can’t be rotated back to their original positions because of math and rounding issues. I immediately…

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Linkage Program

Darned Planetary Gears

I thought that the Linkage program, with the addition of external gears, would handle a planetary transmission just fine. I was wrong. Aside from the issue of having to drive this with a chain, which is necessary because making the center connector of the gear train an input…

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Linkage Program

Slider Bug in Linkage Software

I found a really weird sliding connector bug. If the connectors B and C are very very close to vertical but not quite exactly vertical, a math problem causes the mechanism to fail at a seemingly random position. In this case, I saw it fail about 3/4 of…

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Linkage Program

Linkage Internal Gears

Someone contacted me asking about planetary [internal] gears. I gave it some thought and implemented it in about 2 hours. A bunch of that time was me figuring out how to automatically find the gear radii based on just the ratio. The gear with the larger ration value…

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