The shop
The Gears shop
Fact-checked printables for the workbench and the classroom, plus a short list of books and kits. Every purchase helps keep this site free. Prices are in US dollars.
Gears printables
Fact-checked PDFs in A4 and US Letter, sold as instant downloads from the ReallyByte store: our own drawings, a guide, and worksheets with answers. Prices in US dollars.
The Gears Reference Guide
A fact-checked guide to how gears work: pairs and pinions, counting teeth to work out ratios, spur, helical, bevel and worm gears, trains, and mechanical advantage.
The Gears Activity Pack
A quiz, myth-or-fact cards and worksheets with answers, following the sourced wording used on gears.mechanics.im.
Gears in Mills, Clocks and Bikes
A short sourced companion to the gears hiding in a watermill, a clock train, and a Sturmey-Archer bicycle hub, plus Watt’s sun-and-planet gear.
The Complete Gears Printables Bundle
All three packs, A4 and US Letter, at a bundle price.
Books and kit
For a class or a workbench: books on how gears work; mechanical advantage books; gear model kits. These are Amazon UK search links, not endorsements of particular products. As an Amazon Associate I earn from qualifying purchases.
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