Big knob for SpaceMouse V2

A big knob 52mm in diameter. More comfortable to hold on. Print as light as possible to make it more responsive.

My settings to make it extremely light: 

0.001% infill (to make minimum sparse infill threshold effective but generate no infill)

Minimum sparse infill threshold 20mm^2 to make the pegs solid

1 outer wall at 0.6mm width

6 top layers and 2 bottom layers

7mm/s internal bridge

40mm/s outer wall and solid infill

Ensure vertical wall thickness to all

0.05mm fuzzy skin with 0.15mm point distance

Totaling 10.39 grams in weight.

Detachable big knob for the SpaceMouse V2.