Recent Blogs
Trammel for Drawing Ellipses: How the Archimedes Mechanism Works, Parts and Uses
How a Trammel of Archimedes draws true ellipses for pattern-makers, sign carvers and toolmakers. Geometry, formula, worked example and tolerance rules.
Geared Ellipsograph Mechanism: How It Works, Cardan-Circle Geometry, Parts, and Uses Explained
Geared ellipsograph explained — how the 2:1 epicyclic gearing traces true ellipses for draughting, optics tooling, and architectural layout. Formula, examples, specs.
Ellipsograph Turntable Mechanism: How It Works, Parts, Formula and Diagram Explained
How an Ellipsograph Turntable draws true ellipses for draughtsmen, jewellers and pattern-makers — geometry, formula, worked example, and selection trade-offs.
Trammel of Archimedes Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained
How the Trammel of Archimedes draws perfect ellipses using two sliders in perpendicular slots. Real applications in machining, drafting, and toy design.