Recent Blogs
Reciprocating Pump From Rotary via Cam
How a rotary cam drives a reciprocating pump plunger — stroke geometry, flow output, and worked sizing for dosing, lubrication, and chemical injection.
Reciprocating-rack Crank Substitute
How a reciprocating-rack crank substitute converts rotary input into linear back-and-forth motion. Real formulas, sizing examples, and packaging line uses.
Crank-disk with Toothed Sector and Rack
Crank-disk with toothed sector and rack converts rotation into intermittent linear motion. See how it works, formula, worked example, and packaging-line uses.
Crank to Oscillating Rod Reciprocating
Crank to oscillating rod reciprocating mechanism explained — how it converts rotation into back-and-forth motion, with formulas, examples, and design rules.
Crank (general)
Crank mechanism explained — how rotary input converts to linear or oscillating output, with sizing math, real-world examples from bicycles to engines, and design tradeoffs.
Transmission Reciprocating
Reciprocating transmission converts rotary motion to linear back-and-forth motion. Learn how it works, formulas, and uses in pumps, presses, and engines.
Tusi Couple
The Tusi Couple converts rotary motion into pure straight-line motion using a small circle rolling inside a circle twice its size. Used in optics, robotics,...
Hoecken Linkage
How the Hoecken Linkage produces approximate straight-line motion from rotary input — geometry, formula, worked example, and real industrial applications.
Drum and Rope Conversion
Drum and Rope Conversion turns rotary motion into linear pull for hoists, winches, and stage rigging. Learn the formula, real applications, and design rules.
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.
Haven's Planetary Crank Gear
Haven's Planetary Crank Gear converts rotary motion into a slow reciprocating stroke for pumps, presses, and railway signal gear. See diagrams, math, and examples.
Disk-and-pin Alternate Rectilinear
Disk-and-pin alternate rectilinear mechanism explained — how the offset pin and slotted yoke convert rotary motion into reversing linear stroke for textile and packaging machinery.
Air-pump Movement
Air-pump movement explained — how rotary motion converts to reciprocating piston travel for inflators, aquarium pumps, and industrial bellows drives.
Cam (mechanism)
How a Cam mechanism converts rotary motion into precise linear or oscillating motion — geometry, lift profiles, and real engine and machine examples.