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Four bar linkages

Some linkage apps

Tags: linkage, mechanism

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Door Which Opens Both Ways
Door Which Opens Both Ways
Drag the red point to observe the behavior of this four bar linkage.

Tags: 4-bar, linkage, mechanism

A door which opens both ways
A door which opens both ways
Here is a design for a 4 bar linkage which opens a door either to the left or to the right.  Note the pivot points for the linkage are the circumcenters of the triangles whose vertices are the corresponding ends of the door in the three required positions.

Tags: linkage, 4-bar, STEM-challenge


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