Is there a reason that you did not want to use the "motion.spindle-at-speed" pin? I like the way it works. When this pin is false, Linuxcnc will wait until it is driven true before starting any cutting move (but it will still make a G0 positioning move. It is especially nice if you can get an at speed signal back from your VFD. This way at the beginning of your file you can command a spindle start, then G0 to the first cut, if the spindle is up to speed by the time it gets there, it starts right in, but if it is still accelerating the program will pause, at the first G1(or G2, G3, or other canned function) and wait for the spindle to finish starting. This is how I've set up several machines. If you really can't spare an input to use for the signal from your VFD. You could use the "motion.spindle-at-speed" pin with the time delay component to give the "motion.spindle-at-speed " a true signal X seconds after starting like this:
Code:
loadrt timedelay count=1
addf timedelay.0 servo-thread
setp timedelay.0.on-delay 5
net spindle-on => timedelay.0.in
net spindle-timer <= timedelay.0.out
net spindle-timer => motion.spindle-at-speed
