Sphere Dice Set

The Sphere Dice are solid dice obtained by intersecting a regular polyhedron and a sphere.
They are "as fair as possible": the shape is fair but, as the numbering remove some material, there could be a little bias (but probably not more than commercial dice).
Here you have all the 7 Sphere Dice in one set:
 - D4 Sphere
 - D6 Sphere
 - D8 Sphere
 - D10 Sphere
 - D% Sphere
 - D12 Sphere
 - D20 Sphere
For dice collectors and RPG players.

Get all the dice from D3 to D20 plus the D% and D24 by gathering:
- the Sphere Dice Set
- the DCC Expansion Pack
- the Odd Spherical Dice Set
- the D18

You may also be interested into the brand new D22.

Truncated Sphere D11 with 3-fold symmetry.

This die is inspired by the repulsion force polyhedra. Nonetheless, the underlying polyhedron (not rounded) is very different from the shape that can be obtained through this technique with 11 points repulsing each others.

Actually, I calculated the positions of 11 points to have a maximal radius for the circles resulting from the intersection of this underlying polyhedron with a sphere with the following constraints:
- 2 poles (upper and lower face - parallel to the horizontal plane)
- 3 points around each pole
- 3 remaining points corresponding to 3 faces perpendicular to the horizontal plane

The result is a truncated sphere with 11 circular faces of same radius.

It is numbered from 1 to 11: 2 numbers are on faces (poles), 6 between vertices and face and  3 on edges. The sum of the numbers on the 3 upper vertices surronding the North pole is 18.  Same thing for the sum of the 3 numbers on the lower vertices surronding the South pole and the sum of the 3 numbers on the edges of the equator.

This die is made of a shell of 1.5mm that contains support material to make it heavier. The engraved numbers have a 0.75 mm depth. They are quite big since they overlap the surrounding faces and thus should be very easy to read.

See this thread for more informations.

Available Truncated Sphere Dice: D4, D6, D8, D9, D10, D%, D11, D12, D14, D15, D16, D17, D18, D20, D24, D32, D33
Alternative shapes: alt D8, 3-fold D10 (rounded), 3-fold D10 (pointed), 4-fold D10, 5-folded D10 (pointed)
Coming soon: D22, D50
Related dice: Concave D4, Concave D6, D4 Shell, D8 Shell.

Breaking news!
The KickStarter project has been sucessful!
Thank you all!
This die will be mass produced in March 2013!

Truncated Sphere D14 based on a cuboctahedron.
Numbered from 1 to 14.

A D14 numbered from 1 to 7 twice is also available.

This a new version with a better engraving and a new orientation that should give better results.

Truncated Sphere D15.

This die is inspired by the repulsive force polyhedra although in this case, the underlying polyhedron (not rounded) is very different from the shape that can be obtained through this technique with 15 points repulsing each others.
Actually, I calculated the positions of points (5 at each tropic, 5 at equator, none at the pole) to have a maximal radius for the circles resulting from the intersection of this underlying polyhedron with a sphere. The result is a truncated sphere with 15 circular faces of same radius.

It is numbered from 1 to 15: all numbers are on edges.
The sum of the numbers on each tropic is 40 and the same applies to the equator.
Except for 8, all the numbers go by pair summing to 16: on the tropic two numbers symmetric relatively to the plane of the equator sum to16 and on the equator circle itself two numbers symmetric relatively to number 8 sum to 16. 

This die is made of a shell of 1.5 mm that contains support material to make it heavier. The engraved numbers have a 0.75 mm depth.

More informations in this post.

Available Truncated Sphere Dice: D4, D6, D8, D9, D10, D%, D11, D12, D14, D15, D16, D17, D18, D20, D24, D32, D33
Alternative shapes: alt D8, 3-fold D10 (rounded), 3-fold D10 (pointed), 4-fold D10, 5-folded D10 (pointed)
Coming soon: D22, D50
Related dice: Concave D4, Concave D6, D4 Shell, D8 Shell.

Truncated Sphere D32, regular edition.
Based on an idea from Orangery.

The underlying polyhedron is a non-uniform icosidodecahedron (a kind of polyhedral soccer ball).

The distance between two faces is 30mm. The thickness is 1.5mm but it is full of support material to keep it heavy.

It is numbered from 1 to 32 with the difference between two numbers on opposite faces being always 16.
If you take the sum of a face surrounded by 5 neighbours (there are twelve of them, that corespond to pentagons on the underlying polyhedron i.e. before the intersection with a sphere) and its 5 surrounding faces you will always obtain 99.

More informations this post and this other post.

See also the Frosted Edition (20 mm only in Frosted Detail and Frosted Ultra Detail).

D4 Shell

It's a Truncated Sphere D4 without faces!
The idea of keeping only the round part of a truncated sphere die when the numbers are located on vertices or edges is from Clsn (check his D9 for instance).
The thickness is 2 mm. Since it does not contain a lot of material, this die is quite affordable.

All the D4: 
  - Truncated Sphere D4
 - Concave D4
 - D4 Shell

See also the D8 Shell.

D3 Shell

Available Truncated Sphere Dice: D3, D4, D6, D7, D8, D9, D10, D%, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D24, D32, D33
Alternative shapes: alt D7 (2-fold), alt D8, 3-fold D10 (rounded), 3-fold D10 (pointed), 4-fold D10, 5-folded D10 (pointed), Alt D24 (snub)
Coming soon: D22, D50
Related dice: Concave D4, Concave D6, D3 Shell, D4 Shell, D8 Shell.

D8 Shell

It's a Alternative D8 Sphere without faces!
The idea of keeping only the round part of a truncated sphere die when the numbers lie on vertices or edges is from Clsn (check his D9 for instance).
The thickness is 2 mm. Since it does not contain a lot of material, this die is quite affordable.

See also the D4 Shell and this thread for more informations.

Available Truncated Sphere Dice: D4, D6, D8, D9, D10, D%, D11, D12, D14, D15, D16, D17, D18, D20, D24, D32, D33
Alternative shapes: alt D8, 3-fold D10 (rounded), 3-fold D10 (pointed), 4-fold D10, 5-folded D10 (pointed)
Coming soon: D22, D50
Related dice: Concave D4, Concave D6, D4 Shell, D8 Shell.