Adjustable Catapult
Description
Catapult With Adjustable Position Stops. Lets Students Experiment With How Pull Back And End Point Stops Impact Trajectory. Students Can Also Experiment With Rubber Band Size, Strength, And Number. Requires: 3X 6-32 X 1 1/2" Machine Screws 3X 6-32 Wing Nuts Plastic Spoon Hot Glue Rubber Bands If Spoon Breaks, Adult Can Soak In Hot Water To Soften Hot Glue, Then Remove Spoon End With Pliers. Do Not Dry Fire! It Will Crack The Spoon.
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