Worth noting that modern pistons have ovality! See: https://en.wikipedia.org/wik... | Hacker News

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		TheSpiceIsLife on April 17, 2020 \| parent \| context \| favorite \| on: Hand Scraping a Truly Flat Plane (1908) [pdf] Worth noting that modern pistons have ovality! See: https://en.wikipedia.org/wiki/Piston And a this one I found via DuckDuckGo https://blog.wiseco.com/pistons-arent-round-profile-and-oval...

jhallenworld on April 17, 2020 [–]

Interesting! My statement was based on what I read in the Museum of Retro Tech:

http://www.douglas-self.com/MUSEUM/museum.htm

Many designs have been tried over the years, but suffer from oil leaks, low compression or high manufacturing costs.

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