Bryan has been working on this forever! Truly a labor of love. Neat to see it pop up here. He also does illustrations of homes around San Francisco (amongst other things), which I highly recommend checking out: <a href="https://www.instagram.com/bmacomber_art/" rel="nofollow">https://www.instagram.com/bmacomber_art/</a>
"Illustrated tear-downs and break-downs of everyday products, like mechanical pencils, lighters and pez dispensers, that you may have taken for granted. Drawn by Bryan Macomber, a mechanical engineer and artist."<p>The description above comes from the following post on mastodon: <a href="https://merveilles.town/@rek/116658587354593919" rel="nofollow">https://merveilles.town/@rek/116658587354593919</a>
Such a beautifully done site. I might be in love already . Many kudos.<p>I dropped in a suggestion to do one on an umbrella. There's a lot going on in these. One can study the differential geometry of surfaces. The mechanism design of opening and closing.<p>I find both the spring ones (push button) and the ones without spring quite fascinating. In fact the ones without a spring has implicit ones imposed by the bending of the spokes.
I've always enjoyed that the cam surface for that particular push-push mechanism design (click pen) is not that dissimilar from a Leibniz wheel. It's so tempting to add more steps.<p><a href="https://en.wikipedia.org/wiki/Leibniz_wheel" rel="nofollow">https://en.wikipedia.org/wiki/Leibniz_wheel</a><p>I can't help myself and have to link some of my favorite youtube channels.<p>Engineerguy: <a href="https://youtube.com/@engineerguyvideo" rel="nofollow">https://youtube.com/@engineerguyvideo</a><p>Chris Staecker: <a href="https://youtube.com/@ChrisStaecker" rel="nofollow">https://youtube.com/@ChrisStaecker</a>
Meta: confusing typo in title. Mods , please fix penciN -> penciL. Thanks.
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