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| This shot details the workings of the control lever. The lever has been removed and set on the table next to the machine. There are tiles on the top of the battery box and its switch to keep the underside of the lever moving smoothly. These also prevent the button from getting locked into the "stay on" position. The lever is shaped so that as it turns, the inverse slope piece gently pushes the button down. Through most of the rotation, the bricks around the center piece keep the button down. The gap after the last brick is just big enough to allow the button to release, and is positioned to do so when the lever is ready to engage the train again. The round 2x2 is necessary because otherwise its corner in the open area would prevent the button from releasing. | |
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© 1999-2000 Tony Hafner