Recent Blogs
Parabola Scriber Mechanism: How the Focus-Directrix Linkage Draws a True Parabola
A Parabola Scriber draws true parabolic curves directly on stock for solar dish layout, antenna reflectors, and optical tooling. Geometry, formulas, examples.
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.