Ordinarily, when we need gears, we pop open a McMaster catalog or head to the KHK website. Some of the more adventurous may even laser cut or 3D print them. But what about machining them yourself?

The production of noiseless gears requires that minute errors in tooth-curves be avoided. Objectionable sound-waves are caused by a gear-tooth error of 0.0003 in. and ...

Involute gears When you read about designing gears, you are almost always reading about ‘involute’ gears. Rarely will anyone need to play with other types, such as hypoid gears. Properly designed ...

If you’re into CNC machining, mechanical tinkering, or just love a good engineering rabbit hole, you’re in for a treat. Substack’s [lcamtuf] has written a quick yet insightful 15-minute introduction ...

Multiple cominations and possibilities Grind any large-angle profile tooth to a smaller one, or a smaller-angle to a larger one Following an earlier proposal for transcribing the angle of hob profile ...