Mechanisms — parallel motion linkage

Recent Blogs

Watt Parallel Motion diagram
Watt Parallel Motion: Linkage Illustration and Coupler Division
Explore a fixed illustrative Watt four-bar and calculate an inverse-length coupler division. Entered dimensions do not define a complete custom linkage.
Parallel Ruler (form 6) diagram
Parallel Ruler (Form 6): Ideal Alternating Walk Sequence
Explore parallel-ruler motion. Calculate the components of one equal-link transfer and the total perpendicular advance for repeated transfers at a fixed angle.
Parallel Ruler (form 2) diagram
Parallel Ruler (Form 2): Hiscox Equal-Link Pivot Path
Explore Hiscox’s equal-link parallel ruler. Calculate longitudinal shift, perpendicular separation and circular pivot travel from link length and opening angle.
Rack Gear Parallel Motion diagram
Rack-Gear Parallel Motion: Ideal Opposed-Rack Kinematics
Rack gear parallel motion guides a steam piston rod in a straight line using a rack, pinion and counter-rack. See the geometry, math and a...