Precision matthews PM-1127VFI-LB, Инструкция по безопасности и обучению

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Faceplate
A lathe faceplate, is a flat, round plate that threads to the
headstock spindle of the lathe. The faceplate is used for
irregularly shaped workpieces that cannot be successfully held
by chucks or mounted between centers.
The workpiece is either attached to the faceplate using angle
plates or brackets or bolted directly to the plate. Radial T-slots in
the faceplate surface facilitate mounting workpieces.
The faceplate is valuable for mounting workpieces in which an
eccentric hole or projection is to be machined. The number of
applications of the faceplates depends upon the ingenuity of the
machinist.
A small faceplate known as a driving faceplate is used to drive
the lathe dog for workpieces mounted between centers. The
driving faceplate usually has fewer T-slots than the larger
faceplates.
When the workpiece is supported between centers, a lathe dog
is fastened to the workpiece and engaged in a slot of the driving
faceplate.