Recent Blogs
Reciprocating Pump From Rotary via Cam: How It Works, Parts, Diagram and Calculator
Explore a circular eccentric cam driving a pump plunger. Calculate plunger area, ideal volume per stroke and revolution, and revolutions per millilitre.
Reciprocating-rack Crank Substitute Mechanism Explained: How It Works, Parts, Formula and Uses
Explore Brown movement 119 with an endless rack and guided pinion. Calculate cycle time and mean rack speed from stroke and full-cycle rate.
Crank-disk with Toothed Sector and Rack: How the Mechanism Works, Parts, and Uses Explained
Explore a crank-driven slotted rocker with a toothed sector, rack and rope-driven weight. Calculate rocker swing, rack stroke, sector pitch radius and tooth pitch.
Crank (general) Mechanism: How It Works, Slider-Crank Diagram, Parts and Real-World Uses
Explore an in-line slider-crank. Calculate stroke, slider travel, rod-length ratio and mean piston speed, and inspect angles where a short rod cannot reach the guide.
Reciprocating Transmission: In-line Slider-crank Geometry
Calculate stroke, rod length, slider displacement and full-cycle mean speed for an ideal in-line slider crank. Forces and machine performance are not modeled.
Tusi Couple: Two-to-one Geometry and Straight-line Stroke
Explore the ideal straight-line trace of a circle rolling inside a circle twice its diameter. Calculate stroke and amplitude for the exact two-to-one case.
Hoecken Linkage: Link-Length Scaling and Model Limits | FIRGELLI
Explore approximate straight-line linkage geometry and calculate scaled link lengths. Velocity variation, usable stroke, full-cycle closure and payload are not verified by this tool.
Drum and Rope Conversion Mechanism Explained: How Winch Drums Convert Rotation to Linear Pull
Explore winding-drum rotation and tangential rope travel. Calculate line speed, travel per turn and ideal pull from effective diameter, rpm and shaft torque.
Chebyshev Linkage: Double-Rocker Motion and Coupler-Midpoint Path
Explore a Chebyshev double-rocker linkage. Adjust four link lengths and compare sampled horizontal span and vertical variation of the coupler midpoint.
Disk-and-pin Alternate Rectilinear Mechanism: How It Works, Parts, Diagram, and Uses Explained
Explore a disk-and-pin slotted yoke that converts rotation into straight reciprocation. Set stroke and disk angle to calculate pin offset and yoke position.
Air-pump Movement Mechanism: How It Works, Diagram, Parts, Formula and Industrial Uses Explained
Explore a geared crank-slider air-pump drive. Calculate piston stroke, cycle rate, frequency and mean piston speed from crank offset, motor rpm and gear ratio.
Cam (mechanism) Explained: How It Works, Diagram, Parts, Profile Formula and Uses
Explore a radial cam with linear rise and return. Adjust lift and event angles, then compare follower displacement, motion rate and the available lower dwell.