Leslie Newell wrote: > I am retrofitting a lathe that has a 3-speed electrically controlled > gearbox. The gear change sequencing will be controlled by ClassicLadder. > Basically ClassicLadder has 3 HAL pins set up, one to select each gear. > Is there any easy way that an appropriate gear can be selected by G-code? > > If you don't use CSS, then the requested speed could be used within ranges to select the right gear. If you DO use CSS, then the commanded speed at the instant the spindle is started may not give the best gear range. You could use one of the miscellaneous extra commands to set pins to CL.
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