I went for a visually interesting wavy style to this fidget, which made it much more difficult to design than my other hexagon fidgets. These segments gradually morph from eight rounded waves on the outside to octagons at the center, giving a really neat look and feel. 

Print Settings:

• .25mm layer height
• 2 perimeters and no infill for solid walls
• No supports or brim
• Slow down your initial layer and increase bed temp by about 5C if you have build plate adhesion issues