Đồ chơi đường chạy bi hình nón Marbleator

A cone shaped marble run with seven spirals and a containment moat.
Printed at 100% will support a 6.35mm (1/4inch), or smaller ball bearing but can be rescaled to suit a different size ball bearing or marble.

Size: 187.5(dia.) x 96.4(h) mm
Weight: 149g

Print Details
Filament: PLA Blue
Layer Height: 0.1mm
Wall count: 4
Infill: 20%
Infill Pattern: Octagon
Base Adhesion: Skirt
No Supports

Usage
Simply release the marble at the top of the cone into the spiral channel and watch it descend to the bottom exiting the spiral to rest in the moat. Then repeat.
For added entertainment release multiple marbles in groups or individually and see which rolls around the the moat the furthest. In this case multicoloured marbles would help differentiation.

Marble/ball bearing options
Brass ball bearings 6mm
Plastic balls 6mm
Links valid at the time of publication.