THE BUILD AND THE EFFICIENCY OF THE SEMI-AUTOMATIC SEPAK-TAKRAW BALL SHOOTING MECHANISM FOR TRAINING
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Abstract
This research aimed to build and determine the efficiency of a semi-automatic Sepak-Trakraw ball. Use projectile object motion theory to calculate Takraw ball movement. The electrical design uses an electric motor with a drive capacity of 10 hp, a current of 17 amperes, and a rotor lock current of 50 amperes, no load speed at 1450 rpm, used single-layer belt reducers to drive pulleys according to the 2, 4, 6, 8, 10, and 12-inch sizes used to experiment with the speed of the Takraw ball by setting the Takraw ball traverse time at 1 second.
The results showed that every test shot met the set performance criteria. The fifth test shot had the highest efficiency of 97.60 %, using a 5-inch pulley, a pulley speed of 19.27 meters, and an average Takraw ball traverse distance of 18.81 meters. From testing and determining efficiency, it was found that there is potential for using the semi-automatic Sepak-Trakraw ball for demonstration and training, indoors and outdoors.
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