Re: Analog Spindle

[Ray Henry <rehenry-at-up.net>]

Kurtis

My memory fades but it seems to me that someone said that spindle speed 
was available with stg on the next axis after whatever you'd defined in 
your ini.  I haven't a clue how you'd tell it how many pulses per 
rotation or max speed.

Sounds like you are looking at a parport.  How are you planning to get 
speed signal into the PC and the analog signal out?

I am running my stepper based griz spindle with m3, m4 and m5 but I don't 
try to control speed from the PC.

Ray


On Tuesday 03 September 2002 09:45 am, you wrote:
> A look through ../emctask/minimilltaskintf.cc  will reveal that some
> code has been written to allow a dac to be configured to run an analog
> spindle.
>
> SPINDLE_ON_INDEX  for which dac. (ie. 3 for the fourth)
> VOLTS_PER_RPM for obviously how many volts to output for every
> commanded rpm.(ie. 0.001 for 1volt per 1000 rpm)
>
> I don't get any analog ouput from:
> M3 S1000
> I do get the clockwise direction bit to toggle.  (M5 to stop, M4 for
> counterclockwise)
>
> What do I need to do in order to get the analog spindle output?
> Could this be brought over to work with bridgeporttask?
>
> Maybe a new name for the bridgeport stuff if any modifications are to
> be done;  something machine independant.
>
> Kurtis