Mastodawn

Mar 5, 2024

I finally made it: an XOR mechanism that requires exactly one of two keys to be inserted at a time. I call it the 🗝️ #keyguardian.

This is very useful for example to track where important small things go: Want to take the car keys? You have to insert your name tag to unlock it.

My first mechanical project with #SolveSpace and it was great!

EDIT: Now on #Printables: https://www.printables.com/model/793767-keyguardian-dual-key-xor-mechanism

#3dPrinting #CAD #3dDesign #Screwiverse #HSW

Keyguardian: dual-key XOR mechanism by Yann Büchau | Download free STL model | Printables.com

A HSW key holder that releases one key only when a nametag is inserted | Download free 3D printable STL models

Printables.com

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Alice Averlong🏳️‍⚧️

@nobodyinperson you fool! If you make a physical XOR mechanism, that's dangerously close to making a logic gate. What if someone prints 12 million of these and builds adders and ALUs and memory and now it's running doom!

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myrmepropagandist Mar 5, 2024

@foone @nobodyinperson

Running doom on lace bobbins.

Coming soon.

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none gender with left politics Mar 5, 2024

@futurebird @foone @nobodyinperson *furiously googling if anyone's made logic gates out of ants like they have with crabs*

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JordiGH Mar 5, 2024

@foone @nobodyinperson I thought to run Doom we needed to first flatten a rock and then run lightning through it.

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Alice Averlong🏳️‍⚧️Mar 5, 2024

@JordiGH @nobodyinperson nope! that's merely the most common way.
If you can built logic gates (only certain ones: you need and/or and a not, or a combined NAND/NOR), you can then build a computer out them.

Those logic gates can be made out of anything though. Electron tubes, gears, falling marbles, crabs, etc...

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