Rigid Tapping Help

halmeter and halshow run fine directly from the command line...
(at least in this case where LinuxCNC is already running )

OK, so "halmeter signal spindle-index-enable" pops up the hal meter window
and "halcmd sets spindle-index-enable 1" doesn't appear to do anything.

The hal meter initially shows "true" when the window pops up and changes to "false" when I rotate the spindle by hand. It stays false after that.

Probing pins 23/24 I see ~2.5v and it doesn't change when I rotate the spindle slowly.

Is it safe to assume that my encoder is shot? I've been hesitant to throw another $90 at an encoder without some verification, but if this is it, I'll get one ordered.

NCPatrol wrote: The hal meter initially shows "true" when the window pops up and changes to "false" when I rotate the spindle by hand. It stays false after that
....
Is it safe to assume that my encoder is shot?.

On the contrary, it shows that everything is working properly.

(You should find that if you set the index-enable to true that it sets to zero again at exactly the same spot in the spindle rotation, and that is the point of it. LinuxCNC motion looks for the index-enable resetting to false to start the spindle-synched move.
)

andypugh wrote:

NCPatrol wrote: The hal meter initially shows "true" when the window pops up and changes to "false" when I rotate the spindle by hand. It stays false after that
....
Is it safe to assume that my encoder is shot?.

On the contrary, it shows that everything is working properly.

(You should find that if you set the index-enable to true that it sets to zero again at exactly the same spot in the spindle rotation, and that is the point of it. LinuxCNC motion looks for the index-enable resetting to false to start the spindle-synched move.
)

So why no - change on the pins when rotating?


And I guess, if the hal indicates the sensor itself is working, where do I go from here?

The encoder index pulse might just be too short to see in halmeter (it might b a fixed-length pulse).

Now we know that the hardware is good, can you remind us what the problem is?

Can you check the question I asked earlier?

Does the encoder count up in M3 and down in M4 mode?