A faceted low-poly pen holder that prints without supports. Ten-sided body with triangular facets, 75 x 79 x 100 mm, 3 mm walls and a 3.2 mm floor. The bottom edge has a 0.8 mm chamfer so the first layer doesn't flare. Holds 20+ pens, pencils and markers.

• Print-oriented, sits flat on the bed, fits 180 x 180 mm printers (A1 mini, MINI and larger)
• Checked: watertight, manifold, no self-intersections, no overhangs over 45 deg, thinnest wall 2.9 mm
• About 77 g PLA with 3 walls and 15% infill
• Settings: 0.2 mm layers, 3 walls, 15% infill, no supports, no brim; PLA or PETG
• Files: STL, 3MF, OBJ (millimetres) and BLEND
• 180 triangles, 92 vertices