Jerre122 wrote: Any idea about other ways for getting a delay when reversing spindle directions?
Why do you need a delay? Knowing the problem you are trying to solve would make it easier to know what the best solution is.
The behaviour you want might well be something that you can program into the spindle drive.
Alternatively, if you just want a slow ramp down and up again, look at using a limit2 HAL component between motion.spindle-speed-out and whatever it drives.
www.linuxcnc.org/docs/html/man/man9/limit2.9.html
If you are only using M3 and M4, and your spindle runs full speed in either direction, then you can probably do what you want with the "timedelay" HAL function:
www.linuxcnc.org/docs/html/man/man9/timedelay.9.html
To avoid a delay when starting from stopped you probably need two timedelays and two XOR functions.
M3-out = M3-in XOR timedelay(M4-in)
M4-out = M4-in XOR timedelay(M3-in).
In HAL code that would look a bit like:
Code:
loadrt timedelay count=2
loadrt xor2 count=2
…
addf timedelay.0 servo-thread
addf timedelay.1 servo-thread
addf xor2.0 servo-thread
addf xor2.1 servo thread
…
# these are inhibits, so only do anything on the on-to-off transition
setp timedelay.0.on-delay 0
setp timedelay.0.off-delay 5
setp timedelay.1.on-delay 0
setp timedelay.1.off-delay 5
net m3-in motion.spindle.forward xor2.0.in0 timedelay.0.in
net m4-in motion.spindle.reverse xor2.1.in0 timedelay.1.in
net m3-delayed timedelay.0.out xor2.1.in1
net m4-delayed timedelay.1.out xor2.0.in1
net m3-out xor2.0.out {parport.0.pin-01-out, or whatever}
net m4-out xor2.1.out {parport.0.pin-02-out, or whatever}
Maybe ladder is actually simpler?
