Recent Blogs
Slotted Parallel Ruler Mechanism Explained: How It Works, Parts, Diagram, and Navigation Uses
Slotted parallel ruler explained — how the slot-and-pin geometry keeps drawn lines parallel, with worked examples for draughting, marine navigation and shipwrights.
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 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.
Peaucellier's Parallel Motion: How the Exact Straight-Line Linkage Works, Parts & Uses
Peaucellier's parallel motion converts rotary input into exact straight-line output. Geometry, formula, worked example for steam engine guides and machine tools.