Electric screwdriver
Description
3D printed electric screwdriver Gear ratio 25:1 Just enough torque for smartphones and such with more speed than an average commercial screwdriver of similar type. It requires: .Powerful type 130 dc motor (pick current of mine at 4 volts is about 3 Amps) (Also as it turns out stock brushes of this motors last for about a week) I upgraded mine with graphite brushes i took from another motor. Yet to find out how long that would last. . 18650 lithium-ion cell . Lithium cell protection board . Couple of buttons . H bridge motor controller (i used TA6586) . Micro USB . Some litium battery charging chip https://youtu.be/ZXS3nk1TOEk https://youtu.be/Kg6o8JX_Bvk
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