This is how I make the PVC pipe style feeder.
Get a 4" Dia. Pvc pipe either 4,5,6ft. long.
1- connecter with a 45 degree coming out.
2-pvc 4" caps.
1- 3" long piece of the 4" pipe.

Take the 45 connecter and put it on the end of the pipe, Then take the 3" piece and add on to the 45 connecter but not the part that is shooting the 45 out out. the other end so it will lenghtin the pipe. Then put a PVC cap on the 45 so the corn doesnt fall out of the bottom when hanging up right in the tree. The other cap is to cover the top of the pipe to keep debris and rain from getting inside.
Then strap it to the tree, the 45 will be pointing away from the tree, so the deer can it out of the 45.