Read the release notes.

This is a knife. Yep, a knife. It's as knifey as a knife can possibly be while still not being a knife. Yet... it's a knife.

It's designed to be printed in half, then glued together. Feel free to stick them together in your thingy thing and print them all as one part.... but yeah. you know why I did it.

You'll need 3 pins. (One file)

M5 nut/bolts for the sheath.
M3 nut/bolt set for the clip/base/attachment thingy.

The clip/base is designed to use the Molle Clip attachment from MRH: https://www.thingiverse.com/thing:2783462
Dude makes some seriously awesome stuff. But doesn't allow remixes, so I can't use the files in here and credit them. Oh well.

v1.00
This is a WIP.
This hasn't even been printed yet. I'm lazy!

v1.01
Updated the Pins and Handle STLS because this idiot emu forgot to take .3mm off so they'd all fit together without having to spend 10 minutes sanding.

Update Notes - The Sheath "LOCK" arms are quite flimsy when printed on standard PLA.
They're sturdier on PLA+ and stronger PLA's, but on standard PLA, they lock the blade in, but only just.
There's 2 fixes for this:
1 - Heating and bending them in helps.
2 - Adding small cuts of filament between the lock arms and the main center part, pushes the arms in enough to create a reallly strong lock. (See post in MAKES)

I might re-release the inner sheath with thicker arms at a later date if I get enough comments that this is a bigger problem than I thought.

Creality

Ender 3 Pro

No

Yes

v1.0
I have yet to actually print this.
Hence the WiP status.

Feel free to give me a ribbing if I've screwed something up.

v1.01
Finally printed this with SILK PLA for the lels and CF PLA+ for fun!
Updated STL files to fix the problems I found.

If you want something a little more stylish, check out this one.
https://www.thingiverse.com/thing:5687877