Pure Era baby play pen modular accessory attachment adapter

This is an adapter kit featuring a modular keyhole attachment design to attach various accessories to the hinges on a Pure Era baby play pen.  Possible it may fit other play pens by other brands such as Dripex as well.

The included Retainer is designed to fit a 16mm rod.  It's a curtain rod that I repurpose to hold a baby mobile.  The Retainer has the correct key shape to fit the hole on the adapters, so it can be used as a template to make different retainers for other accessories attachments.

Everything prints without support.

I suggest PETG for the strength of the small loops, which can break easily if printed in a brittle material such as PLA.