Mastodawn

I chose a kinda print-in-place approach:

The print is paused right before the case is closed, then the moving part is manually removed from the bed with a little snap-off helper lid at the side and put into the case. This works much more reliably than anything I tried with glueing or closing the case otherwise or trying to to actual print in place (failed miserably 😅).

A drop of e.g. silicone oil and the operation is very smooth!

#3dPrinting

Richard "RichiH" Hartmann Mar 5, 2024

@nobodyinperson interesting idea! I'd probably preprint the insert or.print it into the enclosing part onto very thin supports that break away with the first activation.

@RichiH Preprinting works as well, sure. But that's another step and slows it down, so I tried this one. I tried with the supports, but it's really hard to get right...

Richard "RichiH" Hartmann Mar 5, 2024

@nobodyinperson not sure if I agree on it taking more time unless you're actively monitoring the print and even then, but it if works for you all good.

Still an interesting idea either way.

@RichiH On printables I have put all the base files as well, also without that snapoff latch. For printing many of them at once, printing the moving carriage separately is probably better, right.

Earthshine --> moved Mar 5, 2024

@nobodyinperson that's actually a really brilliant approach to difficult-to-print interleaved parts. I'll need to remember this.

#HoneycombStorageWall #hsw #Screwiverse #3dPrinting

Mar 7, 2024

I used the #keyguardian to organise these keys. I added a version with a paper label slot and some printed name tags. Works very well! 👍

https://www.printables.com/model/793767-keyguardian-dual-key-xor-mechanism/files#preview:file-ML2Cu

Mar 8, 2024

I now also uploaded that version with the label slot to #Printables

#3dPrinting #keyguardian #SolveSpace

Printables

https://fosstodon.org/@nobodyinperson/112044291000335331

geekandi Mar 8, 2024

@nobodyinperson I have not seen those key holders before.

Can you pass out the link?

@geekandi See the above thread that this post was made in, or click the #keyguardian hashtag:

https://www.printables.com/model/793767-keyguardian-dual-key-xor-mechanism

Yann Büchau :nixos: (@[email protected])

Attached: 1 image 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

Fosstodon

geekandi Mar 8, 2024

@nobodyinperson ah! Silly me. Thanks!

Sparrows Mar 5, 2024

@nobodyinperson Oh, this is really cool.

@nobodyinperson This is delightful!

May I make a suggestion for a version two, because I have one?

@moira Sure, go ahead! 👍

@nobodyinperson The two types of keys appear to have the same kind of latching ends, which means potentially you could end up with someone using a name key to remove and replace another name key, while not returning the borrowed object.

If, however, the name keys were keyed differently to the object-holding keys, this wouldn't be possible.

I think you could invert the keying on the name keys (or the object key doesn't matter) and still have it all fit in a package of the same size.

James Just James Mar 5, 2024

@moira @nobodyinperson Instead just take someone else's name key and steal the car and say they did it!

@purpleidea @nobodyinperson lol yeh

@purpleidea @nobodyinperson i’m assuming more “confusion” than “bad faith” tho rly

Mar 6, 2024

@moira That is of course possible and I experimented with it. This is a simple version. I attached all the source files and it's freely licensed, so can be modified to ones liking.

Alice Averlong🏳️‍⚧️Mar 5, 2024

@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!

myrmepropagandist Mar 5, 2024

@foone @nobodyinperson

Running doom on lace bobbins.

Coming soon.

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*

JordiGH Mar 5, 2024

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

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...

Captain of the SS El Faro Mar 6, 2024

@foone @JordiGH @nobodyinperson going to run Doom on Crab Rave

David Jaša Mar 6, 2024

@foone @nobodyinperson or maybe print just a dozen of them and use it for train control 😊

Artemesia Mar 6, 2024

@djasa

Now, don't be giving british rail upgrade ideas...

tekhedd Mar 5, 2024

@nobodyinperson You know, since it prevents you from removing a key chain without permission, essentially blocking you, you could call it... blockchain. ;)

I'll get my coat.

Earthshine --> moved Mar 5, 2024

@nobodyinperson finally a solution for my 10mm sockets!