Drag Chain

When looking for a drag chain to print, I wasn't happy with the designs, so I designed this one, it's aim is to be quick to print without the need of supports.

This was created in OnShape and is available here so you can make your own ends etc https://cad.onshape.com/documents/56c5c5c3e4b01d512564df73/w/d90b2b51e0812ba5d3929380