Recent Blogs
Lazy-tongs Pantograph Mechanism: How It Works, Parts, Scale Formula & Engraving Uses Explained
How a lazy-tongs pantograph copies and scales drawings using crossed extensible links. Used in drafting, sign-making, and engraving since the 1600s.
Drawing Pantograph: Exact Homothetic Scale
Explore a rigid-link drawing pantograph. Calculate pencil-to-tracer scale, pencil-path length and ideal area scale from a reduction ratio.