This research has designed and built car lift Jack using a spiral screw bases sending one mouth. Diameter 19 mm 4 mm phit stage to learn find out the relationship between the torque twist in the car compared to the height of the stage mothers and the relationship between the mechanical advantage compared to the height of the stage, Jack. The result of the experiment found that the height of the stage, Jack 270 – 330 mm torque twist in an inverse variable length up to the height of the magnetic force. There is a tendency to decrease the length of the river is high-voltage maximum torque torque wheel position, floating from 17.82 N.m and mechanical advantage varies directly with the high pressure stage. With the trend to higher voltage of phase. With an average of 3.86 to mechanical advantage
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