Grasshopper

algorithmic modeling for Rhino

Plotting Epicychoid

I am experimenting with  Epicychoid's in grasshopper. I have set up the relationships of how the curve is derived from two circles but cannot figure out how to plot the points as the as the small circle (radius r = 1) rolls around the outside of the large circle. Can any one help. I have an image and the file attached.

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Permalink Reply by Andrew Heumann on January 1, 2011 at 10:51am

Try this:

 

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Permalink Reply by Chris Tietjen on January 2, 2011 at 12:46am

This one will give you the roulette and the ability to roll the epicycle around the fixed circle.

 

Chris

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