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# Uniform Compound of Two Great Icosahedra

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20 pieces
80 solves

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## Why are you reporting this puzzle?

This compound has the same symmetry a cube and you can see a cross in the order four symmetry axis. At the same time you can recognise pentagrams and equilateral triangles. The diameter of the model is around 13 cm (~5.1 inches)

This wasn't my first try of this model. I started building in June 2018 , but noticed that it didn't work well and I decided to start over in August to make corrections for the thickness of the material. The model was finished in November 2018.

1. marunka2770:27
2. Dilubreuer0:28
3. Roostertowers0:28
4. Ianto0:36
5. davitai0:36
6. Beekay0:44
7. Moneyheffer0:44
8. rlwemm0:50
9. cilpeteplay0:50
10. DEERPARK0:50

And now the new one is posted

O goodie :-)

Yes, I just finished one today. I'm just waiting for a picture.

Time for some more of your polywizardy now that you have some vacation time to play with. Pretty please, Marcelteun. - Rosemary

Thanks, Beekay! Best wishes to you too again.

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ೋ.........HAPPY NEW YEAR..........ೋ
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Thanks Rosemary! Don't worry, I'll continue,.. Slowly.. ;)

I see that you are well ahead of my knowledge. :-)

Are you saying that I'm not really having fun? ;)

I am familiar with Robert's Stella. It's quite an impressive program! My problem is that it doesn't run in Linux.

Therefore I have been developing my own program. It's OS independent, but it's really only used by me, even though it's publicly available on github. A long time ago I implemented compounds of polyhedra and since Stella didn't have support for that at that time Robert asked me how I had done that. Stella has had support for compound polyhedra for quite some time now.

I also worked with folded heptagons, as you can see in some other puzzles here. I don't think you can do that in Stella either, but I might be wrong, since I'm not using it.

Congratulations.
If you really want to have fun with polyhedrons I recommend Robert Webb's Great Stella program or its variants. https://www.software3d.com/Stella.php