Homing the Spindle

Sweet. No need to dust of the programming skills for this one!

I know this is an old thread but I was wondering if anybody came up with an automated way to include this in the machine homing sequence?

Not a big deal, as I created an extra Glade button, to "home" the spindle for orientation (M19), but wanted to check.

I played with this further and came up with a solution that is working for my machine.

Encoder index enable is set to high when LinuxCNC starts.

Once the last axis is homed (in my case Y), the LUT5 out will trigger a rising edge for 2 seconds. Timedelay is used to delay for 1 second to allow LinuxCNC to switch to auto-mode. Timedelay.out will trigger halui.mdi-command-18, which will rotate the spindle, index it and position is at 0 degree.

machine.hal:
loadrt lut5 names=lut5.home-spindle
loadrt timedelay names=timedelay.home-spindle
loadrt edge count=1

addf lut5.home-spindle servo-thread
addf timedelay.home-spindle servo-thread
addf edge.0 servo-thread

net spindle-sync spindle.0.index-enable => hm2_7i92.0.encoder.00.index-enable
sets spindle-sync 1

# LUT5 all inputs TRUE (AND) to trigger output
setp lut5.home-spindle.function 0x80000000
net z-is-homed lut5.home-spindle.in-0
net x-is-homed lut5.home-spindle.in-1
net y-is-homed lut5.home-spindle.in-2
setp lut5.home-spindle.in-3 TRUE # Placeholder for A Axis
setp lut5.home-spindle.in-4 TRUE # Placeholder for B Axis

setp edge.0.out-width-ns 2000000000 # 2 seconds
setp edge.0.in-edge FALSE # rising edge
setp edge.0.both FALSE

setp timedelay.home-spindle.on-delay 1

net lut5-home-spindle-trigger lut5.home-spindle.out => edge.0.in
net timedelay-home-spindle edge.0.out => timedelay.home-spindle.in
net spindle-index-trigger timedelay.home-spindle.out => halui.mdi-command-18
setp timedelay.home-spindle.on-delay 1

machine.ini:
[HALUI]#18
MDI_COMMAND=o<index_spindle> call

macros:
o<index_spindle> sub
S100 m3
G4 P1
M19 R0 Q10
o<index_spindle> endsub
M2

Hi

I know you have found a solution, but if you like you can try my orient component this one include homing spindle with homing machine + possibility to ask orient angle + jog mode.

This is a work in progree but it work, i need some help and tester for try to to something finished.

forum.linuxcnc.org/10-advanced-configura...t-component?start=40

br

Hi alkabal,

just downloaded what I believe is the latest version of your component. I will do some testing the next couple of days and report back.

Thanks for you work so far.

near 15 april is for now the last version i does not work more for the moment.

If you need help for hal config you can ask.

br