Back or front tool

No Different
The state of pin 16 is not changing when I call for spindle rev
Pin 17 changes when I call for spindle on

tommylight wrote:

If the spindle-on turns the actual spindle on, it is not set properly in hal for reverse and PWM.
The spindle-cw and spindle-ccw should be used with bidirectional PWM.


 

I have come to this conclusion Tommy
But what Are the "proper settings in Hal to reverse this spindle and to regulate its speed ?

I have good  regulation of speed in forward direction . It is a DC motor so so only requires a reversing relay to change the direction so I dont quite understand what is wrong with operating a reversing relay on M4  , Spindle start  and speed  seem to follow naturally.

I am not looking to understand the Hal file either  , just to have the reverse function working so if someone could tell me which hal entries will give me what i want , then i will be happy

 

Hi tommy
Files are in this thread (top of page 5)
I did add the instructions in the following two posts to give me a dummy y axis but i dont think that should affect what we are trying to do here

Tried both  cw  and ccw as a pin 16  command as in     "  net spindle-ccw => parport.0.pin-16-out  "
also tried  "pin -16 -in "    but was "not recognised "

Thanks

Thank you but no difference Andy
Pin 16 stays low on both M3 and M4

I think as a sanity check I would see if it is a hardware issue. As an experiment try swapping the LPT pins around.


Example:
net spindle-ccw spindle.0.reverse => parport.0.pin-17-out

Also swap 16 around
And have a look at what is going on at 17

Right !
So I am in Gmoccapy screen and using (onscreen) spindle forward, stop , and reverse buttons . Also watching LEDs in halshow(watch)
So I select spindle forward
Pin 17 shows illuminated Led, spindle runs ccw and selected speed shows 300.
spindle stop causes both Leds to go out spindle stops
Spindle reverse brings on both Leds, spindle still runs ccw
At Bob Led illuminated yellow corresponds with 5v at pin ( red gives 0v)
At this stage in Hal      net spindle-on => parport .0.pin-17-out
And            net spindle-ccw spindle.0.reverse => parport.0.pin-16-out



So In hal file I transpose 16 into spindle "on" command and 17 into spindle "reverse" command .

Now repeating the process:-
spindle start clockwise button does not cause spindle to run at all but pin 16 Led illuminates
Spindle stop both Leds go red
Spindle reverse button illuminates both leds and both pins go to 5V
Spindle still  runs ccw and speed indicator shows minus 300

With regard to the hardware  , if I ground the signal wire to my relay board  the  relay indicator lamp comes on and my reversing relay operates so I am happy that is operating as it should !

So folks . does this tell you anything?

Might it be an Idea for me to try this with a new stepconfig calling for spindle forward on pin 17 and reverse on 16