Thanks to villamany for the original design (https://www.thingiverse.com/thing:1206960). I was going to print the originals for a friend but didn't have right embedded nuts to print right meow! What started as updates to the embedded nut opening ended as a bunch of changes - most notable being the inclusion of carbon fiber rods I had left over from my boat project for extra reinforcement.
Changes from the original:
Note: to prevent support generation in arm section set overhangs to > 85 - also the carbon fiber tube will obstruct any XT60 or other connectors from passing through the top plate so if you are using them you will want to add the carbon tube after those parts are in place
The author remixed this model.