Very simple cross stitching tread organiser I quickly slapped together in an afternoon, that was made to hold up to a decent amount of travel abuse.
Each card holds 20 threads and each hole is numbered from 1 to 20 and 21 to 40 for each card respectively.
The test print I did suffered from some under extrusion, so I won't be including any pictures today.
Cross-Stitching_Tread-Holder_1-40.stl | 4.7MB |