WR&N IV Animation: Road Compactor
The road compactor didn't get much attention for a couple of reasons: it was very difficult to see, making brief occasional appearances behind Dot's Diner, and it was slow-moving—not really a problem, as this was realistic.
The compactor itself was a modified GHQ kit. I made the rollers rotate, and added a bit of tubing to one end which engaged a pin that protruded from the parking lot surface it was presumably rolling.
The mechanism was simplicity itself: a low-RPM geared motor rotated a crank that slowly moved a rod to and fro; the rod slid along a slot in the pavement. Part of the reason it was hidden behind the diner was so that the slot wasn't visible.
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