5 técnicas sencillas para la Perpetual Marble Machine Kinetic
Soldered the battery holder wires to the motor making certain with power applied the motor shaft rotated clockwise when the motor is viewed from the motor shaft end."So cute! I love this Triunfador my new fidget toy" Kinetic sculpture Wooden sailboat nautical art automaton sculpture desk art gift for bossEven machines that extract energy from long-