I've been thinking of animating some dice and while most are easy to make, I'm having some trouble figuring out a way to generate a regular dodecahedron. I could hand build it but it would be potentially uneven. Would using the base of a 5 sided cylinder and then some variation on spin be the best option or is there a better way?
Go to User Preferences and Navigate to Add Mesh, install the Regular Solids addon and close the preferences window. Now if you hit Shift + A you should see a new menu.
In newer versions of blender (2.75 and up) the Regular Solids addon has been merged with the Extra Objects addon.
To create a dodecahedron go use Shift + A to Add Mesh > Math Function > Regular Solid.
Then on the toolshelf you can select Dodecahedron.
If you don't want to use an addon, you can take advantage of the fact that the dodecahedron is the dual of the icosahedron.
- Add an icosphere (Add → Mesh → Icosphere) with Subdivisions at 1.
- Go into edit mode with Tab.
- Select all with A.
- Press CtrlB to Bevel until you have an approximate dodecahedron:
- Press W and select Remove Doubles. Increase the Merge Distance until the vertex triples are merged. Et voilà; you have a dodecahedron.