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SLAC utilizes 3 of the 4 MDrive motor sizes: NMEA NEMA 17, 23, and 34.
- 17: 42 mm (mostly used as slits for steppers, linear actuator version used on things like IPM/PIM)
- 23: 57 mm (mostly used for Parker/generic steppers for injectors)
- 34: 85 mm (definitely used for larger moves like mode change ex. CXI has two "pointings" so the entire beamline is shifted from the bottom with these depending on what focus we run in)
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