CNC Lathe, 3D Printed Parts, Arduino Controlled, South Bend SB1001 8k 8×18

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The South Bend SB1001 8×18 (8k) lathe is a quality bench top lathe. It would seem a great lathe as a base for a CNC lathe conversion. Reasons include minimal parts to discard following the conversion, a nice camlock spindle, and a variable speed DC motor. The conversion is difficult because the small crossfeed channel makes installing a ballscrew difficult.

First a 3D model of the lathe was made in SolidWorks by taking lots of measurements and hours of modeling. A CNC conversion is made using 3D printed parts, an Arduino, and closed-loop stepper motors. A video describes the process and demonstrates the results.

Make your own. The lathe model (and 3D printed parts) files are available for download!

South Bend SB1001 lathe: SB1001 homepage
Arduino Mega 2560: Arduino Mega homepage
Oriental Motor AR46AA-3, AlphaStep Closed Loop Stepper Motor and Driver: AR46AA-3 homepage