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Please Let Me Know How Much You Like This (1 is very Bad - 10 is Excellent)

Four-bar linkage 2B

A part of the pink locus is a straight line.

Note: following dimensions are better than the ones given in the video:

Length of green crank: a

Length of blue bar : 2.5a

Length of pink bar: 2.5a + 2.5a

Distances between stationary bearings: 2a.

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