1 hour hourglass big bigger,

thingiverse

A gigantic hourglass-shaped timer stands tall at 20cm high. Its one-hour duration is marked by precise fine desert sand flowing from top to bottom with no need for additional support. The large round base is designed to prevent warping, and as you can see in the picture, a 1.5mm or 2mm wall thickness ensures optimal brightness. Please print this design and let me know how it turns out - happy printing awaits!