Delta Kite Spreader Joint

This is a joint needed to build a delta kite. I followed this guide from [public labs](https://publiclab.org/notes/mathew/7-19-2012/easy-cut-delta-kite-plans) to make my kite, but I got the idea from this [japanese guide on kite making](https://gogo.wildmind.jp/feed/howto/99) and this [part](https://www.thingiverse.com/thing:2166292)

This is used to attach a spreader spar across the back of a delta.

It is designed to take an 8mm spar like a fiberglass driveway marker. There are 2 versions.