Search found 550 matches

by robertw
Mon Feb 22, 2021 2:23 am
Forum: Stella Forum
Topic: New Feature: 3D Printing App?
Replies: 10
Views: 71

Re: New Feature: 3D Printing App?

Probably safer to presume I won't be adding such a feature within the next year. I've thought about it before though to help with what I call topological models, which are otherwise tricky to make, eg https://www.software3d.com/HollowSSD.php But it's not something I have any immediate plans to look ...
by robertw
Mon Feb 22, 2021 2:13 am
Forum: Polyhedron Models
Topic: The Joys of Polyhedral Surfaces
Replies: 5
Views: 34

Re: The Joys of Polyhedral Surfaces

You're probably best just posting images and videos here in the forum as you did already. Maybe just keep posting to this thread.
by robertw
Mon Feb 22, 2021 2:09 am
Forum: Stella Forum
Topic: Orientation of Torus arm segments
Replies: 1
Views: 7

Re: Orientation of Torus arm segments

Hi, and welcome to Stella! At the moment, you're right, there's no way to decide the angle of the cross-section around the torus. One way you could make that shape though would be as follows: 1. Create torus with 6 segments around the arm rather than 3 2. Use faceting mode to create the faces you ne...
by robertw
Sun Feb 21, 2021 10:18 am
Forum: Stella Forum
Topic: New Feature: 3D Printing App?
Replies: 10
Views: 71

Re: New Feature: 3D Printing App?

3D printers require a solid enclosed volume. Looks like you're hiding some faces but not others, so the parts are infinitely thin. It would not be easy to thicken these surfaces in Stella. I don't know whether another app provides a way to do that. Might be a good option for the future, but sorry, I...
by robertw
Sun Feb 21, 2021 10:11 am
Forum: Polyhedron Models
Topic: The Joys of Polyhedral Surfaces
Replies: 5
Views: 34

Re: The Joys of Polyhedral Surfaces

Thanks Albert, glad you're enjoying it!
by robertw
Sat Feb 20, 2021 5:13 am
Forum: Stella Forum
Topic: New Feature: 3D Printing App?
Replies: 10
Views: 71

Re: New Feature: 3D Printing App?

From Stella's menu you can export a 3D model as .STL and some other formats. .STL is the standard for 3D printing. "File->3D Export->Export STL" You may want to try doing this with a Stellation view selected rather than the base view. This will only export the visible parts, and not all the hidden i...
by robertw
Sun Jan 31, 2021 1:07 pm
Forum: Polyhedra
Topic: New Uniform Polychora
Replies: 15
Views: 2307

Re: New Uniform Polychora

Oh wow, all uniform? Did Bowers find those? I wonder how many more are out there. Are they numbered or named yet?
by robertw
Wed Nov 18, 2020 11:41 am
Forum: Polyhedra
Topic: New Uniform Polychora
Replies: 15
Views: 2307

Re: New Uniform Polychora

Here is a zip file containing the 6 new uniforms and several scaliforms and compounds. Great, thanks. Do they have official numbers? I think it's 1850-Sidditsphit and 1851-Gidditsphit. What about the others? Damn, looks like the two new ones I found ARE two of the blends you already found, setut an...
by robertw
Mon Nov 02, 2020 3:06 am
Forum: Stella Feature Requests
Topic: Better rendering of infinite duals
Replies: 4
Views: 1169

Re: Better rendering of infinite duals

Wonky how? Which one?

You can adjust the extent of the infinite dual faces using Ctr+Left-drag in the Dual view.

Hold Ctrl and you'll see the cursor change and the tip in the corner tell you what it does.

Image
by robertw
Mon Oct 26, 2020 1:24 pm
Forum: Stella Forum
Topic: Searching Stella for a specific polyhedron
Replies: 2
Views: 977

Re: Searching Stella for a specific polyhedron

The Pentagonal Hexecontahedron is the dual of the snub dodecahedron. There is indeed a search bar, although you can't find everything that way, but it works for any polyhedra that are built-in. Open the list of provided polyhedra from either the menu or toolbar: https://i.postimg.cc/GtLT23zn/image.p...
by robertw
Mon Oct 12, 2020 1:40 pm
Forum: Stella Feature Requests
Topic: More correspondence between faceting and stellation criteria options
Replies: 4
Views: 1124

Re: More correspondence between faceting and stellation criteria options

You can already interact with the stellation diagram and the cell diagram. Watch the bottom right corner for tips about what the mouse can do, and hold down Shift or Ctrl to see how they change. With the mouse in the Stellation Diagram view, hold Shift: https://i.postimg.cc/sgD7csR4/image.png Or hol...
by robertw
Mon Oct 12, 2020 1:30 pm
Forum: Polyhedron Models
Topic: Built Models of Compound Polyhedra
Replies: 9
Views: 4666

Re: Built Models of Compound Polyhedra

Very nice!
by robertw
Mon Oct 12, 2020 2:06 am
Forum: Stella Feature Requests
Topic: More correspondence between faceting and stellation criteria options
Replies: 4
Views: 1124

Re: More correspondence between faceting and stellation criteria options

Thanks for the suggestions. The current stellation criteria don't really make sense for faceting, since as you say, it's about the exterior shape, which has no meaning for the dual. Stellation was added first, and was more based on the approach of Coxeter et al in The 59 Icosahedra, ie Miller's Rule...
by robertw
Mon Oct 05, 2020 1:25 pm
Forum: Stella Feature Requests
Topic: Category 26
Replies: 2
Views: 767

Re: Category 26

Yeah I fixed that already locally, but not in a released version yet. The folder was there, but I think it had been put under the category 24 folder by mistake.
by robertw
Sun Oct 04, 2020 5:09 am
Forum: Polyhedra
Topic: New Uniform Polychora
Replies: 15
Views: 2307

Re: New Uniform Polychora

I would expect the small one to be first in order before the great one, but up to Bowers. I tried blending the mirror images of the sidditsphit vertex figure together, but that didn't work, so maybe the two sidditsphits are blended another way. Here's what the 3D cross-sections look like taken halfw...