And I've never even listened to King Crimson

The standard Rubik's cube and many of its variations aren't too hard once you know a few basic principles. I gave a 7x7x7 cube, a teraminx and various other twisty puzzles which aren't too hard, although they may take a long time due to the number of pieces. This one though, the "curvy starminx", wa...

We certainly ate a few marshmallows along the way. And the model didn't survive the night.

After sitting scrambled on my shelf for years, I finally figured out how to solve this beautiful puzzle! Seen here sitting on the page of scribbles made while solving.

https://www.facebook.com/photo.php?fbid ... 1739136522

Here's a model I made with marshmallows and toothpicks at MathsJam Melbourne. It could be any of the four polyhedra shown, as they all have the same edges. Three are uniform, the 4th is the compound of 5 cubes. Interesting that you can form regular triangles, squares, pentagons, and pentagrams from ...

OK glad you figured it out. A warning rather than crashing would have been more helpful. I'll look into that.

Not yet. I did try this as a new feature, but not in a released version yet.

I'm still trying to get my slicer (3D printing CAM software) to recognize it as a solid object You can probably fix this by exporting from the stellation view rather than the base view. Polyhedra like this with intersecting faces will be exported with intersecting faces, and some slicers can't hand...

Try using look-at instead of sit-on. The problem is that Stella exports a model with Y up, whereas some STL software uses Z up. I should add an option for this some time. In the meantime, using look-at instead of sit-on fixes it.

Oh, and if the model you're importing is convex, then you can get away with ONLY vertices, and Stella will create the convex hull of those vertices for you.

Oops, yep I got confused too, taking your lead It's the cells you don't need. You need the faces.

How to arrange faces into cells can be ambiguous, but you can leave cells out and let Stella guess.

You can create geodesic domes using "Poly->Create Geodesic Spheres", and find a bunch of pre-created ones in the Stella Library under the "Geodesic Hemispheres" and "Geodesic Spheres" categories.

But to construct them in the manner of Wenninger is different from how Stella usually presents models.

Just leave out the faces. Give the number of faces as zero and just list the vertices and cells.

Stella will guess the faces for you. For some polytopes this is ambiguous, which is why it allows you to specify, but usually it's not ambiguous so you can leave it out.

Well done, looks great!

Ah that makes sense. Looking at the cell just changes the 3D rotation, so if you change the way it projects from 4D to 3D, then this won't be altered. So yes, leave it at the default projection.