SpinDot DICE – Modular D6 System

A new way to dice — under 30 minutes. A print‑in‑place D6 with a freely spinning core.

SpinDot DICE is a completely new take on the classic D6: a print‑in‑place dice with a freely spinning internal core, revealed through engineered slits. Two cages, three cores — four modular combinations. Plus a Fast‑Print Edition, a clean two‑color version with high‑contrast pips - and a premium version with full color changes (recommended for H2D/C makers).

How SpinDot DICE actually rolls

SpinDot DICE isn’t just a dice you drop — you roll it across the table. As the cage moves, the internal core begins to spin freely, creating a unique double‑roll effect: the outer dice rolls normally, while the inner core rotates independently.

This motion is what makes SpinDot DICE feel alive — a dice with its own internal momentum.

Special Thanks

A huge shoutout to @bsfoster0 for the original idea behind a rotating core dice! I was fascinated by the concept and wanted to bring it to life. I have completely engineered every part from scratch to ensure a perfect print-in-place experience, signature SpinDot haptics, and ultra-fast print speeds. A big thank you to @bsfoster0  for the spark that led to this modular system!

Included Variants

Cages:

• Round Cage – Smooth Geometry A rounded, soft‑edged cage with openings on all six faces. Rolls better, feels more natural, and is ideal as the default version.
• Square Cage – Angular Geometry A sharper, more geometric cage with the same six‑face openings. More technical, more defined edges, and visually striking.

Cores:

• Round Core – smooth and balanced A clean, rounded internal sphere with soft geometry. Rolls smoothly and gives the most natural motion feel.

• Twist Core – dynamic and expressive A twisted internal geometry that creates shifting reflections and more visible motion.

   

   

Features

• Print‑in‑place spinning core: Breaks free as soon as you move the dice after printing.
• Lightweight & Efficient: Only approx. 5.5g of filament per dice (single color).
• Four modular combinations: Any cage works with any core.
• No supports required: Fully optimized for clean bridging and smooth rotation.
• Designed for silk filaments: silk filaments create deep reflections and make the motion highly visible.

• Readable, high‑contrast pip design: Ideal for display and actual dice use.

   

Print Time

• Standard Edition (0.16 mm): 30 - 40 minutes
• Fast‑Print Edition (0.20 mm): <20 minutes
• Dual Color (0.16 mm): 3:10h (H2D/C) - 5:45h (A1)
• Premium Version (0.16 mm): 3:10h (H2D/C) - 8:40h (A1)

• No supports, no assembly

   

Recommended Print Settings

• Layer height: 0.16–0.20 mm
• Material: Silk PLA, Galaxy PLA, or smooth PLA
• No supports
• Slow outer walls for best surface quality

• For modular prints: print pips separately in white or another high‑contrast color

   

No assembly required!

If you enjoy the mechanical precision of the SpinDot DICE, be sure to check out my other designs. As the creator of the original SpinDot and ArcSpin, I focus on high-quality, tactile mechanics that are satisfying to print and even better to use.

Join the SpinDot Universe and follow me for more modular fidget systems!