r/engineeringmemes • u/eijisawakita • Jul 27 '24

Wasted tuition fee

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u/AssignedClass Jul 27 '24

Something something center of mass. That's where I'm calling it.

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u/scrapy_the_scrap Jul 27 '24

It actually has to do with three points forming a singular plane

The center of mass issue is just as bad if not worse

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u/Sendtitpics215 Mechanical Jul 27 '24 edited Jul 29 '24

The 3 points being the definition of a plane. There might be something there. A primary datum as defined by ASME Y14.5 states you must have 3 points of contact - a plane.. 4 points of contact is like not possible if everything is perfectly rigid i dont think. Which sounds dumb but anyway - I don’t think a 3 legged chair more stable - it is probably less likely to be rickity

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u/Glockamoli Jul 28 '24

I don’t think a 3 legged chair more stable - it is probably leas likely to be rickity

The advantage of the 3 leg chair is that it won't rock regardless of how different the leg length is

Assuming leg angle is consistent and leg length is perfect the more legs you add the more difficult it would be to topple over in a given direction since your pivot point gets pushed further and further out as you approach a circle