Summary

This is spare part for children trike bycicle which fixes the wheel on the axis. I've measured and modelled the one instead of lost one.

Instructions

I've printed on dualstrusion, ABS 10 perimeters with 100% infill,
with support of PLA.
However it was a problem moving from internal hole to the next solid.
To solve it I've added 0.5mm outside wall from ABS also (so that it works as a stick base together with PLA support). Need to set 'external perimeter first' in slick3r.
Print, then remove supporting wall, then remove PLA support.
Add wire spring made from 2mm wire (bycicle's spoke fits ideally!)

Kettler part 10112011 (hubcap quick lock retainer)