Recent Blogs
Parallel Ruler (form 6) Mechanism Explained: Four-Bar Linkage Diagram, Parts, and Uses
Form 6 Parallel Ruler explained — how the four-bar linkage keeps the straightedge parallel during translation, with worked numbers for drafting and marine chart work.
Parallel Ruler (form 5) Mechanism: How the Crossed Parallelogram Linkage Works, Parts & Uses
Parallel Ruler form 5 explained — the four-bar lazy-tongs linkage that lets draftsmen, navigators and CNC operators transfer parallel lines across a chart or drawing.
Parallel Ruler (form 4) Mechanism: How the Four-Bar Parallelogram Linkage Works, Parts & Uses
Parallel Ruler form 4 explained — the four-bar linkage drafting tool used by navigators and architects to transfer parallel lines across charts and drawings.
Parallel Ruler (form 2) Mechanism: How the Parallelogram Linkage Works, Parts, Diagram & Uses
Parallel Ruler form 2 explained — how the four-bar linkage holds true parallel motion across a drafting board, with formulas, tolerances, and worked examples.
Parallel Ruler (form 1) Mechanism: How the Parallelogram Linkage Works, Parts, Uses & Formula
Parallel ruler linkage explained — how the four-bar parallelogram keeps a straight edge parallel during translation, with worked drafting and CNC examples.
Pantograph Mechanism: How the Four-Bar Parallelogram Linkage Scales and Copies Motion
How a Pantograph linkage scales drawings, engraves nameplates, and copies CNC paths. Geometry, formulas, tolerances, and a worked example for makers and engineers.
Overconstrained Mechanism: How It Works, Bennett Linkage Geometry, Formula and Uses
Overconstrained mechanisms move despite breaking Grübler's count. See how Bennett, Bricard and Sarrus linkages work in aerospace, robotics and deployable structures.
Metal Expansion Joint Mechanism: How Bellows Convolutions Work, Parts, Diagram & Sizing Formula
Metal Expansion Joints absorb thermal growth in piping. Learn bellows mechanics, sizing math, and field examples from power, LNG, and process industries.
Leg Mechanism: How It Works, Klann vs Jansen Linkage Parts, Stride Formula and Uses
Leg Mechanism explained: how Klann, Jansen and Chebyshev linkages convert rotary motion into walking gait for robotics, toys, and educational walkers.
Kinematic Coupling Mechanism: How It Works, Diagram, Parts, Formula and Precision Uses
Kinematic Coupling explained — how 6 contact points lock a fixture to sub-micron repeatability for metrology, semiconductor tooling, and optics mounts.
Kempe's Universality Theorem Explained: How the Linkage Mechanism Traces Algebraic Curves
Kempe's Universality Theorem proves any algebraic plane curve can be traced by a linkage. See how engineers use it in robotics, CAD, and motion design.
Jansen's Linkage Mechanism: How It Works, Diagram, Holy Numbers, Parts and Uses Explained
Jansen's Linkage explained — how the 12-bar Theo Jansen leg works, foot-path geometry, design formulas, and worked examples for walking robot builders.
Inverted Slider-crank Chain Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained
Inverted slider-crank chain explained — kinematics, formulas, and real machine examples from hand pumps to Whitworth quick-return shapers and steam reverse gear.
Ideal Machine Mechanism Explained: How It Works, Formula, Lever Diagram and Mechanical Advantage
The Ideal Machine explained — the frictionless, lossless reference model engineers use to size linkages, gearboxes and actuators in real industrial design.
Hoecken Linkage Mechanism: How It Works, Diagram, Parts, Uses, and Stroke Formula Explained
How the Hoecken Linkage produces approximate straight-line motion from rotary input — geometry, formula, worked example, and real industrial applications.
Hoberman Sphere Mechanism Explained: How It Works, Scissor Linkage Diagram, Parts and Uses
How a Hoberman Sphere expands and contracts using scissor linkages. Engineering breakdown, formula, and real applications in architecture, art, and aerospace.
Hinge Mechanism Explained: How It Works, Parts, Diagram, Calculator and Load Formula
How a hinge works as a single-axis revolute joint, with formulas, load math, and real-world examples from architectural hardware to aerospace door fittings.
Hart's Inversors Mechanism Explained: How the Six-Bar Antiparallelogram Traces a Straight Line
Hart's Inversor explained — the 6-bar straight-line linkage that converts rotary input into exact linear motion. Diagrams, formulas and worked examples for engineers.
Hart's Exact Straight-line Inversor: How This Six-Bar Mechanism Traces an Exact Straight Line
Hart's Inversor draws a true straight line from rotary input using a 6-bar antiparallelogram linkage. Used in precision metrology and optical alignment rigs.
Grashof Linkage Explained: Condition, Four-Bar Inversions, Parts and Uses
Grashof linkage explained — the rule that decides whether a four-bar mechanism gives full rotation. Used in pumpjacks, windscreen wipers, and walker robots.
Geometric Folding Algorithms Explained: How Rigid Origami Mechanisms Work, Parts & Uses
Geometric folding algorithms turn rigid linkages into compact deployable structures. Learn the math, design rules, and aerospace applications.
Four-link Kinematic Chain (closed): How the Four-Bar Mechanism Works, Parts and Uses Explained
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 Mechanism: How It Works, Diagram, Grashof Condition, Parts and Uses Explained
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 Mechanism Explained: How It Works, Parts, Formula and Uses
Evans Grasshopper Linkage explained — how this approximate straight-line mechanism guides a piston rod cleanly without crosshead rails in steam and lab gear.
Eight-bar Linkage Mechanism Explained: How It Works, Parts, Diagram and Grübler DOF Formula
Eight-bar linkage explained: how 8 rigid links and 10 joints generate complex paths for walking robots, suspension geometry, and precision motion stages.