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Published on Feb 1, 2009
W12 improved. Two identical wheels are mounted on the same axis face to face, but one is rotated by 90 deg. with respect to the other. Each 6-hole wheel (pulley) carries 6 4x1 thin (rounded) spokes (grey), attached with black pegs to the wheel and secured by 6 3x1 thin black parts. To each spoke is connected a red 6x2 thin piece. The anchor is between the wheels. The thread is wound on a pulley (like those on the seconds hand); the driving weight is 60 g. The last shot shows my(?) solution to the tilted clock problem: the anchor and the pendulum (red) are not rigidly connected; their mutual orientation can be fine tuned with an angular spacer (yellow)