Saltire Software

Web Atlas of Linkages

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Choose from Crank Rocker, Crank Slider and Inverted Crank Slider and find the coupler curve you want

When you are done, you can look at a 3D model of your mechanism, and print it from Printamotion.com

Crank Rocker

All joints are rotational. The follower does not execute a complete rotation, but rocks to and fro.

Crank Slider

One joint is a slider. The track is stationary.

Inverted Crank Slider

One joint is a slider, but the track moves.

Two Position Synthesis

Synthesize a Four Bar Linkage from two positions of the link.

Three Position Synthesis

Synthesize a Four Bar Linkage from three positions of the link.