Hyperboloid Pen Holder

The hyperboloid curve prints in one spiral pass, so the wall runs continuous from base to rim. A weighted base keeps it from tipping over with a full set of pens or brushes — a desk-sized print of a genuinely mathematical shape.

Printed after you order, then quality-checked before it ships — expect 3–5 days before tracking lands in your inbox. Not a fit for the spot you had in mind? Send it back within 30 days for a refund or reprint.

PLA softens in direct heat and prolonged sun — keep pieces off radiators and sunny sills in summer. Wipe clean with a damp cloth; skip the dishwasher.