I Finished My 3D Printed Excalibur Puzzle — Now With Plants, More Shields, and a Short Look Inside
I finally finished my biggest 3D printed puzzle project so far: Excalibur – The King’s Trial.
The idea was to build something that feels like a small escape room, but is still fully printable and buildable at home for anyone with a 3D printer. I wanted it to be more than just a display piece, so it includes real interaction: drawers, hidden buttons, rotating rings, magnets, lights, motors, and a medieval sword-in-the-stone scenario at the center.
The whole puzzle uses plug-and-play Maker Supply parts like buttons, LEDs, battery holders, cables, and motors. For me, that was one of the coolest parts of the build. It makes a much more complex object still feel approachable for people who mainly come from 3D printing, without needing programming or soldering.
In the video, I also show a short look inside the puzzle. Projects like this always get a bit cable-filled on the inside, but I tried to keep it as clean and buildable as possible without making the routing too complicated. If you want to see more of the electronics inside, you can check my assembly video Part 2 here:
https://www.youtube.com/watch?v=XPb\_d49aOzw
The finished version now also includes an optional plants-covered / overgrown stone version, plus additional shield designs, so the puzzle can be built in different looks.
The puzzle was also tested and approved by Bambu Lab / MakerWorld, so the complete Maker Supply kit should come to the store in the next days. It is currently part of a MakerWorld crowdfunding project, but the model page is already here:
https://makerworld.com/en/models/2681966-excalibur-the-puzzle
I also made a full solution & logic guide, because the puzzle has a lot of steps and I wanted it to be something people can actually understand, reset, and let others play.
This was a huge project for me, but I’m really happy with what came out of it: a 3D printed puzzle box / escape-room object that combines printing, mechanics, simple electronics, lighting, and a bit of storytelling.
