Recent Blogs
Beater Bar (typewriter) Mechanism Explained: Parts, Linkage, Diagram, and How It Works
How the typewriter beater bar works, why it shaped impact-printing for a century, and how to diagnose alignment faults on Olympia, Olivetti and IBM machines.
Barrel (horology) Explained: Mechanism, Parts, Diagram, and Mainspring Power Reserve
How a watch barrel stores mainspring energy, drives the gear train, and sets power reserve. Real numbers, design tradeoffs, and worked example for watchmakers.