My take on Hamish Gale's awesome chicken feeding invention http://youtu.be/GegkVownyz8 replacing a 90 degree elbow with a printable part.
Contoured to fit a round 5 gallon pail. Hamish's version requires a round hole to be cut in the container. This one needs a square hole which is easier to cut with a saw or knife.
Parametric for easy size adjustment of the feeder port, or the pail it fits onto. The port and awning are designed to print flat.