The bimini poles are going to be made out of 3/4" emt. (Electrical Metallic Tubing or conduit) Straight away, the conduit is too short so rather than order in some other tubing that would be long enough (because that's too damn easy and makes too much sense), we decided to bend the poles in 2 pieces and weld them together. I didn't want to just butt weld them so we had to fashion a insert that would fit snug and give the joint some strength. More time...
Anyway, I did get one pole finished and installed to support the tent, I'm working on the other 2 poles now. Once they're done, the tent will be completed and ready to use. I still have several items before the trailer is ready to camp in though.
Here are some pictures of fabricating the poles. I used my trusty emt conduit bender to get them to the right shape.

I used a 4" piece of 1/2" emt to make the insert for the joint. I cut it down the middle and split it apart so it would fit snug.

