Variable pitch belt driven spindle

cmorley
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6 years 6 months ago #163675 by cmorley

Replied by cmorley on topic Variable pitch belt driven spindle

make sure the file is executable too

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fungus
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6 years 6 months ago #163677 by fungus

Replied by fungus on topic Variable pitch belt driven spindle

I added

Code:

halcmd show pin
halcmd show sig

into the M1xx, but I saw no print of the pins or signals in terminal.

It's definitely executable, and within the search path (it will error out if not executable, and I have it in the NC file folder).

I do have a "Run" LED on the front panel I made, which blinks while in automatic mode. It cycles once when I issue the "M1xx Px" command, so it's acting like it's just shooting through without hitting any loops. I'm going to try some echos.

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cmorley
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6 years 6 months ago - 6 years 6 months ago #163681 by cmorley

Replied by cmorley on topic Variable pitch belt driven spindle

I would put the commands close to the top so you know it called. If you don't see the pins then it's not getting to the command.

I suppose you could use an echo statement too (Bash is not my strong suit)
Anyways the idea of course is to show the flow of the script.

Chris

Last edit: 6 years 6 months ago by cmorley.

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fungus
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6 years 6 months ago #163683 by fungus

Replied by fungus on topic Variable pitch belt driven spindle

Hmm. I just purposely removed the net assignment lines from the main HAL file, which should have caused errors. No errors occurred. Something fishy is going on... It's like the file isn't even running.

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fungus
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6 years 6 months ago #163685 by fungus

Replied by fungus on topic Variable pitch belt driven spindle

Yeah, I tried it several places within the script. Nada. I couldn't figure out if I was doing echoes correctly, probably due to the fact that it's not getting executed. I'm a bit baffled by this.

Here's the latest:
M101 (using direct pin assignments)

Code:

#!/bin/sh

halcmd show pin

#example usage: M101 P1 (changes variable pitch belt to ratio A)
#uses argument P


#parport.0.pin-11-in-not is input for range A
#parport.0.pin-12-in-not is input for range B
#parport.0.pin-13-in-not is input for range C
#parport.0.pin-2-out is the valve to make RPM lower
#parport.0.pin-5-out is the valve to make RPM higher


range_request = $1

case $range_request in
	#change to ratio 1
	#while the input for ratio 1 is not true, move RPM down until the input is true
	1)
		while ! [halcmd getp parport.0.pin-11-in-not]; do
			if [halcmd getp parport.0.pin-13-in-not] || [halcmd getp parport.0.pin-12-in-not]
			then
				#start the spindle, unscaled
				vfd.speed-command 60
				halcmd setp parport.0.pin-2-out True
			fi
		done

		#once complete, stop the spindle and set both airmotor valves to off
		vfd.speed-command 0.0
		halcmd setp parport.0.pin-2-out False
		halcmd setp parport.0.pin-5-out False
		#set the correct gain for this range
		setp scale.0.gain 0.33
		;;
	#change to ratio 2
	2)
		while ! [halcmd getp parport.0.pin-12-in-not]; do
			if [halcmd getp parport.0.pin-13-in-not]
			then
				vfd.speed-command 60
				halcmd setp parport.0.pin-2-out True
			elif [halcmd getp parport.0.pin-11-in-not]
			then
				vfd.speed-command 60
				halcmd setp parport.0.pin-5-out True
			fi
		done
		vfd.speed-command 0.0
		halcmd setp parport.0.pin-2-out False
		halcmd setp parport.0.pin-5-out False
		setp scale.0.gain 0.66
		;;

	3)
		while ! [halcmd getp parport.0.pin-13-in-not]; do
			if [halcmd getp parport.0.pin-11-in-not] || [halcmd getp parport.0.pin-12-in-not]
			then
				vfd.speed-command 60
				halcmd setp parport.0.pin-5-out True
			fi
		done
		vfd.speed-command 0.0
		halcmd setp parport.0.pin-2-out False
		halcmd setp parport.0.pin-5-out False
		setp scale.0.gain 0.99
		;;
	*)
		halcmd setp parport.0.pin-2-out False
		halcmd setp parport.0.pin-5-out False
		;;
esac
exit 0

M102 (using nets):

Code:

#!/bin/sh

halcmd show pin

#example usage: M102 P1 (changes variable pitch belt to ratio A)
#uses argument P


#spin_rnge_a is net for range A
#spin_rnge_b is net for range B
#spin_rnge_c is net for range C
#rpm_dn is the valve to make RPM lower
#rpm_up is the valve to make RPM higher


range_request = $1


case $range_request in
	#change to ratio 1
	#while the input for ratio 1 is not true, move RPM down until the input is true
	1)
		while ! [gets spin_rnge_a]; do
			if [gets spin_rnge_c] || [gets spin_rnge_b]
			then
				#start the spindle, unscaled
				vfd.speed-command 60
				sets rpm_dn True
				halcmd show pin
			fi
		done

		#once complete, stop the spindle and set both airmotor valves to off
		vfd.speed-command 0.0
		sets rpm_dn False
		sets rpm_up False
		#set the correct gain for this range
		setp scale.0.gain 0.33
		;;
	#change to ratio 2
	2)
		while ! [gets spin_rnge_b]; do
			if [gets spin_rnge_a]
			then
				vfd.speed-command 60
				sets rpm_up True
			elif [gets spin_rnge_c]
			then
				vfd.speed-command 60
				sets rpm_dn True
			fi
		done
		vfd.speed-command 0.0
		sets rpm_dn False
		sets rpm_up False
		setp scale.0.gain 0.66
		;;

	3)
		while ! [gets spin_rnge_c]; do
			if [gets spin_rnge_a] || [gets spin_rnge_b]
			then
				vfd.speed-command 60
				sets rpm_up True
			fi
		done
		vfd.speed-command 0.0
		sets rpm_dn False
		sets rpm_up False
		setp scale.0.gain 0.99
		;;
	*)
		sets rpm_dn False
		sets rpm_up False
		;;
esac
exit 0

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fungus
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6 years 6 months ago #163691 by fungus

Replied by fungus on topic Variable pitch belt driven spindle

Just tried one of the simple examples:

Code:

#!/bin/bash
eog /home/myname/linuxcnc/nc_files/message.png
exit 0

No dice. No errors. The path above is the one referenced in my INI. What the heck?

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Variable pitch belt driven spindle