Print flat
The STL is exported with the flat number face on the build plate and the pins pointing upward. Check the orientation and adhesion in your slicer.
DIY · LOCAL FONT GEOMETRY · STL EXPORT
Create reusable digits from 0 to 9, preview a complete 1–20 number ring at real scale and add automatically positioned press-fit pins.
FULL 1–20 NUMBER RING
A standard dartboard number ring uses 31 individual digits in total.
Print spares: Add at least one extra of every digit and preferably two extra 1s. That keeps replacements identical if a number is hit or a pin breaks during fitting.
The STL is exported with the flat number face on the build plate and the pins pointing upward. Check the orientation and adhesion in your slicer.
Dartboards vary. Print one digit first and test pin diameter and depth without forcing it into the sisal.
Font parsing, geometry, preview and STL export run entirely in your browser. No model is uploaded.
PRINTED & INSTALLED
A complete test set printed flat and fitted directly into a standard sisal dartboard.

