←back to thread

A 15-minute intro to involute gears

(lcamtuf.substack.com)
77 points lapnect | 1 comments | 17 Nov 24 07:52 UTC | HN request time: 0.215s | source
Show context
alnwlsn ◴[21 Nov 24 17:12 UTC] No.42206380[source]▶
The simplest explanations I have found for involute gears is from one of those old 50's training films[0]. Not sure if this is the same one, but the first few minutes give a very intuitive explanation of where the involute shape comes from.

[0] https://www.youtube.com/watch?v=Wlp8RxFt0ec

replies(2): >>42221768 #>>42221967 #
1. _xerces_ ◴[23 Nov 24 17:11 UTC] No.42221967[source]▶
The idea of shining polarized light through gears made of Lucite to view the stress lines at the point of tooth contact is genius!