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Macpod LLC: Hacking the SX2 Mini Mill - (Adding a reverse switch and reverse engineering the tachometer port protocol)
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An Easy and Cheap RPM / Tachometer Upgrade for the Mini Chinese Lathe : 7 Steps (with Pictures) - Instructables
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Macpod LLC: Hacking the SX2 Mini Mill - (Adding a reverse switch and reverse engineering the tachometer port protocol)
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DIGITEN 4 Digital Red LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN for Lathe Conveyor Belt: Amazon.com: Industrial & Scientific
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![An Easy and Cheap RPM / Tachometer Upgrade for the Mini Chinese Lathe : 7 Steps (with Pictures) - Instructables An Easy and Cheap RPM / Tachometer Upgrade for the Mini Chinese Lathe : 7 Steps (with Pictures) - Instructables](https://content.instructables.com/FI6/3JUH/JTONALMQ/FI63JUHJTONALMQ.jpg?auto=webp&fit=bounds&frame=1&height=1024&width=1024auto=webp&frame=1&height=150)