Loading

Gyroid Soma Cube Puzzle

by xmbrst, published

Gyroid Soma Cube Puzzle by xmbrst Jul 1, 2013

Featured Thing!

Description

A [soma cube puzzle](http://en.wikipedia.org/wiki/Soma_cube) in which each piece is a [gyroid](http://en.wikipedia.org/wiki/Gyroid) section. When assembled into a cube correctly, the cube forms a single continuous gyroid section.

Based on emmett's [Dual Gyroid](http://www.thingiverse.com/thing:24366).

Recent Comments

view all

tl dr: I imported emmett's Dual Gyroid into OpenSCAD and built the pieces up there.

The longer story: it was hard to glue individual Dual Gyroids together in OpenSCAD while maintaining simple manifolds. I could get orthogonally adjacent sections to work by doing a union with a 0.1 mm overlap, but as soon as I tried to add a section that would be diagonally adjacent to any other piece would get manifold errors. Through a lot of trial and error I hit on this method:

First I made a simple small piece composed of two of emmett's cubes unioned with 0.1 mm overlap and exported this as an stl. I then unioned several of these two segment pieces together into a chunk big enough to contain any individual soma piece. Then to make each piece I carved it out of the big chunk by taking the intersection of the big chunk with a union of cubes.

Why this worked I don't really know.

How do you make it? Which software did you use? It's awesome!

My grandmother uses the soma cube in the bathroom as a sponge! :D
Just kidding, this thing is quite nerdy, I like it!

More from Puzzles

view more

Makes

Liked By

view all

License

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

Instructions

Print each of the seven pieces and assemble them into a cube. One solution forms a single continuous gyroid section, so you can get some hints by thinking a little about the properties of the gyroid.

Comments

You must be logged in to post a comment.

sofiacrome on Sep 25, 2013 said:

How do you make it? Which software did you use? It's awesome!

xmbrst on Oct 3, 2013 said:

tl dr: I imported emmett's Dual Gyroid into OpenSCAD and built the pieces up there.

The longer story: it was hard to glue individual Dual Gyroids together in OpenSCAD while maintaining simple manifolds. I could get orthogonally adjacent sections to work by doing a union with a 0.1 mm overlap, but as soon as I tried to add a section that would be diagonally adjacent to any other piece would get manifold errors. Through a lot of trial and error I hit on this method:

First I made a simple small piece composed of two of emmett's cubes unioned with 0.1 mm overlap and exported this as an stl. I then unioned several of these two segment pieces together into a chunk big enough to contain any individual soma piece. Then to make each piece I carved it out of the big chunk by taking the intersection of the big chunk with a union of cubes.

Why this worked I don't really know.

AndyP on Jul 5, 2013 said:

Nice. My grandfather uses the Soma Cube to teach math and problem solving to kids. He will definitely like this and I'll print one out for him.

MoonCactus on Jul 11, 2013 said:

My grandmother uses the soma cube in the bathroom as a sponge! :D
Just kidding, this thing is quite nerdy, I like it!

emmett on Jul 1, 2013 said:

Awesome, that's a great derivative.

Top