I Don't have any drawings, but I have seen PVC pipe feeders that seem to work well. First take a length of pipe 3-4 ft long and cut a half circle out of one side on one end. On the other end find a cap or plug to keep out the rain. Paint it to match surrounding area. Attach the pipe to a tree with the notched end towards the ground. The notch should be 2-3 inches above the ground. Fill the pipe with corn or similar sized feed. The corn will pile up on the ground and back up in the pipe and when deer eat some of the corn more will fall out.
Also you can buy battery powered units that attach to 5gal buckets that hang in trees and spread feed at dawn and dusk just like a store bought full unit.
I Have never used the PVC method but I know that it works. We use the 5gal bucket units. Be careful when placing feeders in the woods. Check your game laws before placing any. In our state all non-agricultural feed (ie everything except food plots) and baits must be removed 10 days prior to the first hunting day.
Hunting is not usually a pursuit where instant gratification abounds. It takes a lot of time, practice, resources and patience to be a successful hunter. So when someone decides that an area they hunted only once without taking an animal is worthless and devoid of game, I don't quite understand it. These people usually jump from game management unit to game management unit; trying a new one every year.
Now don't get me wrong, there are people that just enjoy scouting and hunting...