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Prototype 4

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Bracket for holding the electromagnetic brake. The original spring applied, electrically released version was too weak, so switch to direct magnetic action

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The NEMA 14 motor is still too weak, replace it with a NEMA 17. This requires a new end plate and new rollers

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The old single piece roller was hard to make, switch to an easier and more adjustable design

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Add foot switch and foot pedal