Designing around marble filament

Marble filament is plastic mixed with fine mineral powder, which gives it a stone-like surface and a veining pattern that changes from print to print. Two identical busts from the same spool will not look identical.

What that means for a design

• No fine surface texture. The veining will swallow it.
• Strong, simple silhouettes. A bust with a clean profile reads as stone; a busy one reads as noise.
• No reliance on a specific veining position. Never design an eye or a mouth that needs a swirl to land in a particular place.

Why the pieces look heavier than they are

The mineral content gives marble prints a slight sheen and a matte surface that photographs like carved stone. It is the same plastic underneath, and the same weight, but the surface does most of the work.

You do not design marble. You design a shape that marble cannot ruin.

Marble is also slightly abrasive, so it wears a brass nozzle faster than plain PLA. That is one of the reasons a marble piece costs a couple of dollars more than the same model in a solid color.