Bicycle Style Chain (4 part paired links)

Bicycle style chain in 4 parts for 3d printing, successfully printed on Qidi Tech 1 (Replicator Dual)

Note: Pillars are weak at 15 % infill (hollow straws at this scale), suggest at least 50%.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/71KCLyuxhsT