August 19, 2025
Description
This is a modern, fully 3D-printed abacus. It features a black frame and 13 rods with brightly colored beads in orange, green, and yellow. Its structure, with one bead in the upper deck (count as 5) and four in the lower deck(count as 1 each). It's functional tool that combines traditional design with modern manufacturing technology.
Rafts:
No
Supports:
Yes
Infill:
15%
Filament: SUNLU PETG Black/Yellow/Orange/Green Category: Math
License:
Creative Commons — Attribution — Noncommercial