Beta. Dimensions, weight and time are calculated estimates until the test print series is done.

Dice generator

A six-sided die with real recessed pips, and blank polyhedra from d4 to d20. The pips are not drilled or subtracted – they are part of the top face itself, which is why every die comes out watertight without a boolean operation ever running.

The pip layout follows the convention: 1 opposite 6, 2 opposite 5, 3 opposite 4. Blank dice are meant to be labelled – painted, engraved, or with a sticker.

Type

Edge length 16 mm Pip diameter 3.6 mm Pip depth 0.9 mm Pip shape conical Segments per pip 16

Below 12 mm edge length make the pips smaller and shallower, otherwise they run together at the corners.

Size across 18 mm

Blank dice are for your own numbering – symbols, colours, letters. A d20 under 14 mm gets hard to read whatever you do.

Quantity 6 Material Infill 100 %

Full infill is not a luxury here. It is the only way to distribute the mass evenly – a partly filled die has its centre of gravity wherever the infill pattern happened to end.

Request manufacturing

Is your die fair? Roll it and find out

A printed die is not automatically fair, and neither is a bought one: in a well-known study of eleven mass-market d20s, only three passed after three thousand rolls each. This generator makes no promise about fairness – it gives you the tool to check. Roll at least a hundred times, count, type the counts in.

Roll log – how often did each face come up?

Left to right: faces one to six. Roll from a cup onto a hard surface, always the same way – a die thrown by hand onto a carpet measures the carpet.

The chi-squared test with five degrees of freedom asks one question: could this spread have come from chance alone? A value below 11.07 means yes, nothing to see. Above 15.09 means it is unlikely enough to be worth investigating. It never proves a die is fair – it only ever catches one that is not.

Printing notes

Supports	None for the six-sided die: it sits on a full face and the pips are recesses pointing inwards.
Polyhedra	Tetrahedron and octahedron stand on their own. Dodecahedron and icosahedron want a face on the bed – that is what the generator orients them to.
Corners	Elephant-foot compensation matters more here than anywhere else. A die that is 0.15 mm wider at the bottom rolls differently, and you will feel it before you measure it.
Small dice	Under 12 mm, resin gives noticeably cleaner pips than a 0.4 mm nozzle.

The full documentation is in German

This page carries the essentials. The detailed sheet – how the pips are built, materials, profile, and the fairness discussion in full – is in German: documentation.