Re: emc spindle

[Fred Proctor <proctor-at-cme.nist.gov>]

Ming Him Mak wrote:

>
I thought the "SPINDLE_ON_INDEX=3" will active the third axis of
servotogo board,but it is no response. Is any pin of servotogo board
connect to SPINDEL_FORWARD_INDEX, SPINDLE_REVERSE_INDEX........?
<

The EMC controller for the Bridgeport (bridgeporttask/brigeportio)
interprets these as bits on the parallel port. The EMC controller for
our desktop minimill (minimilltask/minimillio) uses the 4th Servo To Go
axis to control the spindle, but I haven't tested this in about a year.

The way this happens is that the C code in
emc/src/emctask/minimilltaskintf.cc takes requests to turn the spindle
off and on and routes them to the motion controller instead of the IO
controller, as is done in bridgeporttaskintf.cc.

If you want to try this, specify the minimill controllers, e.g.,

[TASK]
TASK = minimilltask

[EMCIO]
EMCIO = minimillio

--Fred