Find all your DIY electronics in the MakerShed. 3D Printing, Kits, Arduino, Raspberry Pi, Books & more!

For those of you without metric intuition, 80mm is about π inches. For those of you without metric intuition who flunked geometry, it’s about 3.14 inches. Which am big. Like, cannonball-sized.

And yes, it’s Jörg Sprave again, who many of you will recognize as the mad slingshot genius who brought us machete- and circular-saw-blade-flinging incarnations of his weapon of choice earlier in the year. We who are about to click salute you, Jörg. [via Hack a Day]

joerg sprave slingshot cannon thumb 550xauto 69495 Cannon Sized Slingshot Fires 80mm Steel Shot

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


Related
blog comments powered by Disqus

Related Supplies at Maker Shed

Follow

Get every new post delivered to your Inbox.

Join 26,174 other followers