*** Pictures show angles and are not how to print model ***

Here is a yoyo with a virtually spherical shape into a butterfly. 

Put together using m4 16mm bolt and hex nut, along with C Bearing and response pads.

Recommendation: 

• 0.2 layer height (finer is nicer)
• 12 walls
• 0 infill
• normal support
• print with rim on bed

Add or reduce wall thickness for desired mass, or add infill.