Sewing Machine Contact Motor Spacer
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This bumper helps prevent flat spots on the rubber contact wheel of a sewing machine.
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This bumper helps prevent flat spots on the rubber contact wheel of a sewing machine. The National Sewing Machine Company made this particular sewing machine.
These were branded with many different names, but this particular one uses a contact motor with a rubber wheel. The previous owner shoved a gross old glove into the spacing to keep the wheel from getting a flat spot, but it still got one.
This simple part printed in TPU helps keep this from happening. I recommend printing with around 40% infill and, ideally, a 3D infill pattern like a 3D honeycomb or gyroid.
The motor is around 65.5 mm or roughly 2 5/16 inches in diameter.