![]() Add 2x1 brick "stoppers" to the catapult arm. Feed the axle through the axle holder, then the arm, and through te second axle holder. Use two 1x2 bricks to connect the longer bricks together.Ĩ. You might have to connect the yellow bricks (as shown) so they work as one long brick.ħ. Find two long bricks with holes in the sides for the catapult arm. Get ready to feed the axle (a long stick) through the holes.Ħ. Place the axle holder on top of the frame (as shown). Build the frame that will hold the catapult arm axle.ĥ. Be sure to leave some of the 1x8 bricks hanging over the ends of the frame.Ĥ. Place two 1x8 bricks parallel to each other on top of the frame. Gather four flat bricks for the catapult frame. Collect a rubber band and these plastic building bricks.Ģ. Ready for a more advanced catapult? Try building one that uses a rubber band instead of your finger to launch your payload.ġ. Remember, engineering is about observing and making adjustments.
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