Once folded, a little powerfull bookend. Store flat or between books. Flat easy print.

PLA version:

Print with layerheigth of 0.2 (also 1st layer), infill 30%+.

For correct foldlines:

• Nozzle 0.3 → perimeters = min. 6!
• Nozzle 0.4 → perimeters = min. 4!
• Nozzle 0.5 or 0.6 → perimeters = min. 3

Foldlines are 1 layer. PLA would brake with more layers.

PETG version:

Print with layerheigth of 0.2 (also 1st layer), infill 30%+.

Perimeters: 3

The foldlines are 3 layers, testen and worked well with PETG.