Mechanical Pencil: An illustrated celebration of the engineering around us
mechanical-pencil.com
Mechanical Pencil: An illustrated celebration of the engineering around us
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Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#2The description above comes from the following post on mastodon: https://merveilles.town/@rek/116658587354593919
Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#3I 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.
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.
Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#4Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#5Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#6Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#7https://en.wikipedia.org/wiki/Leibniz_wheel
I can't help myself and have to link some of my favorite youtube channels.
Engineerguy: https://youtube.com/@engineerguyvideo
Chris Staecker: https://youtube.com/@ChrisStaecker
Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#8Meta: confusing typo in title. Mods , please fix penciN -> penciL. Thanks.
Re: Mechanical Pencil: An illustrated celebration of the engineering around us
#9I'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. https://en.wikipedia.org/wiki/Leibniz_wheel I can't help myself and have to link some of my favorite youtube channels. Engineerguy: https://youtube.com/@engineerguyvideo Chris Staecker: https://youtube.com/@ChrisStaecker