I like to grow peas on the deck and was looking for a way to make a different kind of teepee using garden stakes. One option is to tie the poles together at the top. This works but isn’t very durable or attractive.
I decided to design and 3D print a finial for the top of the rods. The angles of the holes dictate the spread at the bottom. This version needed to fit in a pot so I set the angle accordingly.
More Info Here: https://www.instructables.com/id/Trellis-Finial-Assembly/
Ultimaker 2 Extended