
WinMax Lathe NC Programming
704-0115-307
Basic NC G Codes
2-43
G91 - Incremental Programming
G91 establishes a modal setting that tells the control to interpret all XZ endpoint
dimensions in incremental coordinates. G91 Incremental Programming specifies that all
tool endpoint positions are measured from the tool's position at the start of the
motion.This setting remains active until you program G90 to select absolute dimension
programming. A program may switch between G90 Absolute and G91 Incremental at any
time within a part program.
Default—No
Modal—Yes
Cancels G90
Incremental dimensions specify the distance that the tool must move during each block
(i.e. the distance from the start of the move to the end of the move).
Figure 2–28. Incremental Dimensions
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