Manufactured trap throwers offer the opportunity to practice shooting clay targets, but these throwers can often be either expensive or unreliable. The most consistent trap throwers, while reliable, are usually bulky and difficult to transport. Smaller trap throwers require significant hand and arm movement to operate correctly and can thus be very inconsistent. An alternative is to construct your own trap thrower. While it doesn't have the range of a commercial trap thrower, it is cheap and provides consistent trap launches.
Mark the board for the screw positions. Use the tape measure to draw a line with the pencil across the board 1 inch from the top, and mark this line 1 inch away from each edge. These will be the positions for the two screws.
Drive one screw into each of the marked positions using the drill. Leave a quarter-inch of each screw sticking out of the board.
Find the middle of the bungee cord with the tape measure, and mark it with the magic marker.
Hook an end of the bungee cord around each of the screws, and use the pliers to bend the hooks of the bungee tightly around the screws.
Operate the trap thrower from a sitting position. Point the end with screws in the direction you would like the launch to go, and brace the other end against the ground. Hold the board firmly between your knees. With one hand, grip the bungee cord in the middle with two fingers, and pull it close down the flat edge of the board. Load a clay pigeon onto the board with your other hand, fitting it neatly above the bungee and flat on the board. Release the bungee cord in order to launch the clay.
Use "rabbit" clay pigeons rather than traditional clay pigeons for your homemade trap launcher. The large, flat sides of the "rabbits" launch much better than the angled sides of traditional clays.
When pulling back on the bungee to prepare for launch, make sure the mark on the bungee is mostly centred on the board. If it is too much too either side, the clay will strike the bungee's hooks and will not fly correctly.