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Whosa whatsis
2,668 followers -
Polymathic autodidact
Polymathic autodidact

2,668 followers
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We've posted module 1 of our (+Whosa whatsis and my) Hacker Calculus project - a little Circuit Playground based device you can make to visualize acceleration. Details on the device:
https://hackaday.io/project/20621-hacker-calculus/log/58363-log-1-visualizing-acceleration

Please like and follow our project(Hackaday account required) at https://hackaday.io/project/20621-hacker-calculus
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Does Youmagine support Markdown or not? Every time I try to format something, it looks fine in preview, but the formatting doesn't show up on the published page. Even the links don't work unless I just include the URLs as text. I also wanted to embed a youtube video of the design in action. That showed up in the preview but on on the page as well.

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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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