Peaucellier Straight Line Linkage

by JonHollander Jan 1, 2013
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The instructions should say 4 short pins and 4 long pins. What is this used for? After printing it.... I'm asking myself, why did I print this. It doesn't appear to have any motion like I thought it would

It's cool, but I don't understand how it would be connected to a spinning wheel/gear to drive it. It seems to be operated as a pendulum.

You can use a motor and a pear-shaped cam to move the center arm in a rocking motion. The output will oscillate along a straight line.

The nifty thing about the design is that the action needed to drive it is so simple (pushing the pendulum) you can do it lots of different ways. For instance, a way to attach a motor might be with a wheel and rod setup like you use to drive a piston (http://www.thingiverse.com/thing:10494 ). Or you could do something extremely simple like attach a little sail to it and let the wind blow it back and forth. There are millions of possibilities.

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