How to modify juki lbh781 batton hole manual to auto supu 781d control box by gm electronics tech

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YOU LEARN IN THIS VIDEO yoh to convert manual juki 781 to automatic 781d supu control box how to modify juki old manual to auto
juki lbh781 manual stait batton hole machine modified automatically foot and speed control of supu 781d control box with stepper and servo motors
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