Mahjong Line Reader Aid
Designed by Beau Gosse without AI assistance.

Original file: Mahjong Line Reader Aid.3mf
License: Creative Commons Attribution-NonCommercial-ShareAlike 4.0.
https://creativecommons.org/licenses/by-nc-sa/4.0/

Open the original project in PrusaSlicer or a slicer that supports its negative
volumes. It contains a base box and two subtractive box volumes that form the
line opening and recessed region. Inspect the sliced result before printing.
A plain STL export from PrusaSlicer's command line omits the negative volumes,
so the original 3MF is the downloadable model supplied here.

The stored project geometry is approximately 165 x 90 x 8 mm at its saved
scale, with a 140 x 6 mm line opening. These are file-derived dimensions;
fit to your Mahjong card and physical print performance are not validated.

The gallery preview is calculated from the actual 3MF box geometry with both
negative volumes subtracted. It is not a photograph or a modified download.
Original 3MF bytes and filename are preserved.