I am sure this won't consist of plans but...I made mine from a mobile home axle. It is a 3" steel pipe concreted in the ground with the hub about 3' off the ground. I attached a steel frame to the wheel to make a table. I attached plywood and carpet to the frame to make a running surface. The frame of the table was made out of 2" square tubing. The arms were 12 ft if I remember, maybe 14' that extended out that bolted on or off. One had a the hook for the dog and the bait. Picture a field goal post parallel to the ground. The other had a counterweights attached. I have seen pictures where jugs of water were used as counter weights. Like most effective conditioning tools it is very simple and very basic. Not sure of this helps as far as plans or blueprints go. EWO