Knob for M6 Nut

Simple knob that holds a M6 nut. The nut fits really tight, so it won't easily fall out.
Design made with DesignSpark mechanical, available for free from Element14.

Print instructions

Printed using a 0.3 nozzle the fitting seems just right. I used layer height 0.1, but 0.2 is fine. 20% infill.