3/4 inch copper tubing, 45 degree street elbow (both ends big enough to fit the 3/4 pipe), heat shrink tubing (1 inch dia. couple of layers usually does it, builds up the outside diameter of the feed to fit the cup), and a Phantom feedgate (or chair leg/table cap). CJOttawa has a thread somewhere about it too.......they are pretty easy to make and are very durable. The bonus is that they fit inside your feed cup, or slide over the tube for offset feeds.
America is all about speed. Hot, nasty, bada$$ speed. -Eleanor Roosevelt, 1936 FLUFFY BUNNIES PUMP Ebay Feedback MCB Feedback