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Whosa whatsis
2,669 followers -
Polymathic autodidact
Polymathic autodidact

2,669 followers
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Whosa's posts

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I made a blinky.
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I'm looking for a purely-mechanical mechanism that will keep two rotating shafts at the same angle with a variable distance between them. The best ideas I've come up with so far are a pair of 4-bar mechanisms attaching to a third point or putting a keyed linear shaft through the two with bevel gears or universal joints, but is there anything better? I don't need full rotation, just 180 degrees. Any ideas?

+Nicholas Seward +Ryan Carlyle

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Latest book (our sixth!) in collaboration with +Whosa whatsis is now available for preorder. Some pretty cool models!

https://www.amazon.com/3D-Printed-Science-Projects-Engineering/dp/1484226941/
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Our latest project (with +Joan Horvath). Thoughts welcome, here or on the project. https://hackaday.io/project/20621-hacker-calculus

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Some T-shaped belt path experiments.

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1/26/17
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TLDR: the guys that I caught showing heavily processed prints from different types of machines and claiming them as unprocessed prints from theirs at NYMF have now been caught ordering prints from Shapeways for the same purpose. I predict this will be the new Japica.

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Looks like Full Spectrum beat Glowforge to market with an incredibly blantant rip-off of their design.

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Get out the popcorn before you start reading this. You'll need it.

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We (+Whosa whatsis and I) are teaching a free workshop on makertech for teachers, sponsored by National University. It will be at their Spectrum location in San Diego the morning of Saturday Jan 14. One hour overview lecture of all things maker, then an hour of small-group demonstrations.
Registration required - very limited space! Register/more info: https://www.eventbrite.com/e/national-universitys-maker-technologies-in-the-classroom-free-workshop-tickets-30497699440 

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