Sawyer motor

Close-up of the flat passive conductor surface of a motion control Sawyer motor

A Sawyer motor or planar motor is a type of linear electric motor with a forcer capable of moving in two dimensions, riding on a stator which is a large flat—or nearly flat—plate.^[1] Sawyer motors have been used in and pen plotters.

This class of motors is named for Bruce Sawyer, who invented it in 1968.^[2]^[3]

The US-patent was submitted 1966 and granted 1968.^[4]

References[]

^ "ME EN 7960 – Precision Machine Design – Alternative Linear Motion Systems" (PDF). p. 13. Retrieved 2012-04-13.
^ Tom Lauwers; Zack Edmondson & Ralph Hollis (2005). "Free-Roaming Planar Motors". Microdynamic Systems Laboratory, Carnegie Mellon University. Retrieved 2012-04-13.
^ W. E. Hinds and B. Nocito. Theory and Application of Step Motors, chapter 15: The Sawyer Linear Motor, pp. 327–340. St. Paul, West Publishing Co., 1974
^ Sawyer, Bruce A. (1966-05-31), U.S. patent 3,376,578: Magnetic positioning device, retrieved 2018-05-12

5. Linear magnetic drive system (1973-05-22) U.S Patent 3,735,231A, B Sawyer

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[1] "ME EN 7960 – Precision Machine Design – Alternative Linear Motion Systems" (PDF). p. 13. Retrieved 2012-04-13.

[2] Tom Lauwers; Zack Edmondson & Ralph Hollis (2005). "Free-Roaming Planar Motors". Microdynamic Systems Laboratory, Carnegie Mellon University. Retrieved 2012-04-13.

[3] W. E. Hinds and B. Nocito. Theory and Application of Step Motors, chapter 15: The Sawyer Linear Motor, pp. 327–340. St. Paul, West Publishing Co., 1974

[4] Sawyer, Bruce A. (1966-05-31), U.S. patent 3,376,578: Magnetic positioning device, retrieved 2018-05-12

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Sawyer motor

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