Retrofitting a 1986 Maho MH400E

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25 Nov 2018 23:48 #121356 by andypugh
I don't think you need the or2, the GUI turns the spindle on outside of HAL.
You can just connect the button direct to halui.spindle.start to add a manual spindle start button.

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28 Nov 2018 07:48 #121515 by RotarySMP
Thanks Andy, I didn't look at that yet, but probably will need OR2, as I have already netted the HALUI pins to the gearbox COMP, so it can turn the spindle on and off.

Yesterday, I made a new, much more conservative program to mill down the sandvik lathetool holder, using a brand new 10mm chinese HSS four flute. Use 2mm depth of cut, 50% engagement, 480rpm and 75mm/min feed. The first ~250mm went fine with nice chips, but then it died.





Although I did use cutting oil, itprobably need flood coolant to keep HSS cool enough to work in that steel. Oh well, another end mill for the hall of shame. Lucky I bought the Clarkson T&C grinder last year.
Mark
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28 Nov 2018 20:36 #121549 by drimaropoylos
Hi, I think that you should connect hal and not halui pins to gearbox COMP for machine control. I thing halui pins intended use is for the user interface, hardware and software.
John
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28 Nov 2018 20:46 #121551 by drimaropoylos
Controlling the spindle from an independent bouton and from the rest of the software with or statement needs more thought.
John

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29 Nov 2018 09:28 - 29 Nov 2018 09:29 #121582 by drimaropoylos
Mark, can you check in your machine if this is ground?
John
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Last edit: 29 Nov 2018 09:29 by drimaropoylos.

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29 Nov 2018 09:40 #121583 by drimaropoylos
Can you take a close photo to transformers connections?

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29 Nov 2018 09:50 #121584 by RotarySMP

drimaropoylos wrote: Hi, I think that you should connect hal and not halui pins to gearbox COMP for machine control. I thing halui pins intended use is for the user interface, hardware and software.

Controlling the spindle from an independent bouton and from the rest of the software with or statement needs more thought.
John


Hi John, thanks for your input, you are right about that. The relevant spindle control nets which I currently have are these:
net sig_get_commanded_speed  mh400e-gearbox.spindle-speed-in-abs  <= motion.spindle-speed-out-abs
net sig_return_actual_speed  mh400e-gearbox.spindle-speed-out     => motion.spindle-speed-in
net sig_return_spindle-at-speed  mh400e-gearbox.spindle-at-speed  => motion.spindle-at-speed
net sig_stop_spindle         mh400e-gearbox.stop-spindle          => halui.spindle.stop
net spindle-on               motion.spindle-on                    => hm2_5i25.0.7i84.0.2.output-13
net spindle-cw               motion.spindle-forward               => hm2_5i25.0.7i84.0.2.output-12
net spindle-ccw              motion.spindle-reverse               => hm2_5i25.0.7i84.0.2.output-11

And here are the functions which I have had to comment out due to conflicts.
#net maho_panel.r0c3_sig-out maho_panel.key.r0c3                  => halui.spindle.stop
#net maho_panel.r2c4_sig-out maho_panel.key.r2c4                  => halui.spindle.reverse
#net maho_panel.r4c1_sig-out maho_panel.key.r4c1                  => halui.spindle.forward

I used the halui.spindle.stop to give the gearbox control of stopping the spindle. Since there is no motion.spindle-stop pin, should I have the gearbox net to the motion.spindle-on pin and setp false to stop it? Or just have the gearbox comp setp motion.spindle-on false, from within it's code without going through a net?
Mark

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29 Nov 2018 09:56 #121586 by RotarySMP
Hi John,

Lucky my new bellows have not yet arrived, so I still have the guards off and can easily remove the cover and photograph the transformers. Will probably have to wait for the weekend though.
Mark
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29 Nov 2018 15:09 #121591 by drimaropoylos
I think the ''setp motion.spindle-on false'' approach is beter.
John

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03 Dec 2018 14:19 #121750 by RotarySMP
Can a comp even set a parameter directly? I thought the way the HAL works is that the comp connects to the rest of the hal through pins, so a comp can not change a setting it is not connected to though a pin.

When the gearbox comp wants to stop the spindle, it sets
pin out bit stop_spindle = 0 "Start or stop spindle";

to 1

I netted that to
halui.spindle.stop
, but if I changed that net to
motion.spindle-on
and invert it , it should do the same thing, but free up my halui.spindle.stop pin for my external button shouldn't it?

Mark

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