Recent Blogs
Hoecken Linkage
How the Hoecken Linkage produces approximate straight-line motion from rotary input — geometry, formula, worked example, and real industrial applications.
Grashof Linkage
Grashof linkage explained — the rule that decides whether a four-bar mechanism gives full rotation. Used in pumpjacks, windscreen wipers, and walker robots.
Four-link Kinematic Chain (closed)
Four-bar linkage explained — how the closed four-link kinematic chain works, Grashof's law, design formulas, and real machine examples from automotive to robotics.
Four-bar Linkage
Four-bar linkage explained — how the crank-rocker geometry works, Grashof's rule, coupler curves, and real applications in automotive suspension and robotics.
Evans Grasshopper Linkage
Evans Grasshopper Linkage explained — how this approximate straight-line mechanism guides a piston rod cleanly without crosshead rails in steam and lab gear.
Drag-link Mechanism
Drag-link mechanism explained — how the double-crank four-bar converts steady rotation into variable-speed rotation for industrial shaping and indexing machines.
Double-rocker Mechanism
Double-rocker mechanism explained: how the four-bar linkage oscillates both rockers, with worked examples, design rules, and applications in marine and aerospace gear.
Double-crank Mechanism
Double-crank mechanism explained — how it works, design rules, formulas and a worked agricultural baler example for engineers and machine builders.
Crank-rocker Mechanism
How a Crank-rocker Mechanism converts continuous rotation into oscillating motion, with the Grashof condition, worked example, and real industrial uses.
Cognate Linkage
Cognate linkage explained — how Roberts and Chebyshev cognates trace identical coupler curves, with worked examples for cam timing and motion design.
Chebyshev Linkage
The Chebyshev Linkage converts rotary motion into near-straight-line travel without slides. See how it works, the formula, and real applications in robotics.
Rocking Motion
Rocking motion converts continuous rotation into a bounded back-and-forth swing. Learn the geometry, formula, and real applications across textile, packaging, and HVAC.
Rocking Arm
Rocking Arm mechanism explained — how it converts rotation to oscillation, sizing formulas, real machine examples in textiles, printing, and packaging.
Drag-link Quick-return
Drag-link quick-return mechanism explained — how the four-bar linkage produces unequal forward and return strokes for shapers, presses, and packaging machines.