Question: EXAMPLE 8.7 Engraving machine control system The engraving machine shown in Figure 8.32(a) uses two drive motors and associated lead screws to position the

EXAMPLE 8.7 Engraving machine control system The engraving machine shown in Figure

EXAMPLE 8.7 Engraving machine control system The engraving machine shown in Figure 8.32(a) uses two drive motors and associated lead screws to position the engraving scribe in the x direction [7]. A separate motor is used for both the v- and z-axes, as shown. x-axis Scribe y-axis z-axis Metal to be engraved Position measurement X-motor x-motor 2 Desired position Position measurement (a) Controller Controller Motor, screw, and scribe holder Y(s) 1 R(s) K Position on s(s + 1)(s+2) t-axis (b)

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