Search found 123 matches

by Ulrich
Mon Mar 30, 2015 6:51 am
Forum: Polyhedra
Topic: Miller's Monster
Replies: 8
Views: 24880

much easier indeed, cool!
by Ulrich
Sat Mar 28, 2015 8:08 pm
Forum: Polyhedra
Topic: Miller's Monster
Replies: 8
Views: 24880

I tried it in the following way: Take the compound of 5 tetrahedra and put it into memory 1. Then take Millers Monster, select a pentagram (they all should be red in the auto colour option), you hit c and you slightly shift the red colour a bit lighter or darker to avoid colour conflicts in the foll...
by Ulrich
Tue Mar 03, 2015 10:51 am
Forum: Polyhedra
Topic: Compound of 3 Rhombic Prisms
Replies: 12
Views: 28869

robertw wrote:
Pretty magic and cryptic I know! Ideally someday I should make the add-from-memory a bit more clever about orientations!
And doing that, could you please take care of the "put models on faces"-tool too?

Ulrich
by Ulrich
Tue Mar 03, 2015 8:57 am
Forum: Polyhedra
Topic: Compound of 3 Rhombic Prisms
Replies: 12
Views: 28869

But... my problem seems to be the position of the added Rh. Pr. in the cube- as you mentioned already. I work on 2 pc's and both show the Rh.Pr. rotated somehow in the cube. See picture. https://www.dropbox.com/s/0rxfbj63cn1jjro/Screenshot%202015-03-02%2018.05.17.png?dl=0 Too bad for me. Now the ga...
by Ulrich
Mon Mar 02, 2015 11:16 am
Forum: Polyhedra
Topic: Compound of 3 Rhombic Prisms
Replies: 12
Views: 28869

Seems that I was a little too hasty describing the procedure. In the rh prism, there are 8 edges where squares and rhombs meet at 90° and 4 edges where only squares meet. At two of the latter ones, the squares are forming an acute angle (=> "acute edges"), at the other ones the angle is shallow (=>"...
by Ulrich
Sun Mar 01, 2015 11:50 am
Forum: Polyhedra
Topic: Compound of 3 Rhombic Prisms
Replies: 12
Views: 28869

Jos, it can be constructed quickly in the following way: You choose the triangular prism (hit 3,4,4 and ok in the search field). You put this into memory 1. Then you select a square face and augment it by the model in the memory 1 (selected face only, and right (->), to get the orientation ok). You ...
by Ulrich
Sun Feb 02, 2014 12:22 pm
Forum: Stella Forum
Topic: Help Please! How do I do this...
Replies: 6
Views: 19376

... Doing it your way also means that you could facet using the original vertices of the trapezoidal hexacontahedron to keep the original face shapes around the bottom. Rob. Unfortunately that doesn't work because the four vertices you need are not lying in a plane. I had to take the stellation ver...
by Ulrich
Sat Feb 01, 2014 9:05 am
Forum: Stella Forum
Topic: Help Please! How do I do this...
Replies: 6
Views: 19376

Perhaps a new occasion to think about enhancing that "put models
on faces/vertices-tool"? :wink:
by Ulrich
Fri Jan 31, 2014 1:13 pm
Forum: Stella Forum
Topic: Help Please! How do I do this...
Replies: 6
Views: 19376

Re: Help Please! How do I do this...

Mitch, this is another way to get to it, perhaps a little bit faster: You first construct a base model, starting from a 10-fold prism and using the augmentation techniques Robert described: http://i254.photobucket.com/albums/hh82/Heinzzweidrei/mitch_vand_base_zpse1ca1b95.jpg Then you put the trapezo...
by Ulrich
Fri Jan 31, 2014 11:27 am
Forum: Polyhedron Models
Topic: Help with MW63
Replies: 22
Views: 55914

Looks great, especially with the colouring of the pentagons.

Urich

PS: I wouldn' trust the cat!
by Ulrich
Sun Sep 01, 2013 1:56 pm
Forum: Stella Forum
Topic: Can Anybody Help Me Make A Moravian Star Please?
Replies: 18
Views: 53473

here it is

Ulrich
by Ulrich
Wed Aug 28, 2013 10:06 am
Forum: Stella Forum
Topic: Can Anybody Help Me Make A Moravian Star Please?
Replies: 18
Views: 53473

You load the Rhombicuboctahedron and click on the fifth icon from the right in the last row (onmouseover you see "Morph Duals by Expansion"). Then you keep the ctrl-button pressed, click the left mouse button and pull the mouse to the right. Rectangles appear between the base model's faces and in th...
by Ulrich
Wed Aug 28, 2013 8:57 am
Forum: Stella Forum
Topic: Can Anybody Help Me Make A Moravian Star Please?
Replies: 18
Views: 53473

You can morph the rhombicuboctahedron to its dual by expansion up to say 20 %, save it to the memory and retrieve it again. Then you do the augmentation of the squares and the triangles: http://i254.photobucket.com/albums/hh82/Heinzzweidrei/Augmented_Rhombicuboctahedron_Dual_Morph_20_zpsef7d95ba.jpg...
by Ulrich
Thu Aug 15, 2013 9:02 am
Forum: Polyhedron Models
Topic: Hexagonal deltohedron
Replies: 1
Views: 11451

Great model!
by Ulrich
Thu Jul 18, 2013 9:53 am
Forum: Stella Forum
Topic: Sacred Geometry
Replies: 45
Views: 185018

Re: Hello again, Ulrich!

it seems to line up 4 points on a straight line which is a single axis when viewed from above. That is correct. If you hit "s" in stella 4D, you can see the rotation axes. There are 4 3-fold ones in the compound of two tetrahedra. could you tell me if that is correct in the tet2_2k2.gif -- that the...