Home Mechanics Top Assembly
	Mechanics - Top Assembly Click the thumbnails below for a larger image The top assembly consists of the penny positioning and dropping mechanisims. The stepper motor in the back moves the black penny holder left and right via a rack and pinion system. Appropriately placed washers and spacers form a track for the rack mount (light brown strip) to slide in when the motor is on. The golden-colored strip at the bottom of the assembly is a hinge that folds down when the drop tab (silver extension off the front of the assembly) is pulled downwards. Pulling the drop tab removes the bottom support from the penny holder and the penny falls out of the holder. The scaled drawings are intended to convey the general size of the full assembly rather than dimension every part. Fully dimensioned SolidWorks files may be downloaded here or in the downloads section.