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Robert - your new model of Ten Tetrahedra
Posted: Mon Feb 03, 2014 9:02 pm
by oxenholme
The dart shaped facets are divided down the middle as you are using two colours for each.
Presumably you are double-tabbing, so the dart shaped facets will effectively be hinged down their middle.
How does this affect the overall rigidity of the model? Did you need to use any internal bracing?
Posted: Wed Feb 19, 2014 6:22 pm
by oxenholme
I've answered it myself!
I'm 11/12 of the way there, and it's getting pretty rigid.
Posted: Wed Feb 19, 2014 8:23 pm
by oxenholme
Posted: Fri Feb 21, 2014 3:01 am
by robertw
Looks great! What answer did you come up with for internal bracing?
You can see what I did here:
http://www.software3d.com/10Tet.php
Posted: Fri Feb 21, 2014 7:40 am
by oxenholme
I didn't use any.
I try to avoid using internal bracing. It is essential for 5 Cubes, but all the others have proven to be rigid.
Have to admit that 10 Tetrahedra is a big disappointment. Lots of lovely colour, but the shape is a bit too much boring dodecahedral.
It's not a proper compound by my rules as it's 5 left hand oriented and 5 right hand oriented tetrahedra.
Nevertheless, I've made it and it's sat filling space in the display cabinet.