CNC Pause and Resume config files

OwenD

@nightowl999

OK,
We are getting close.
It seems there is no tool selected after the pause.
If you have multiple tools then it may be necessary to record which was selected.
I made a small error on one part that didn't give me the value I wanted in one of tehechos.

Please change both files

; pause.g
G1 Z{max(move.axes[2].userPosition+5,move.axes[2].max-5)} ; move the Z axis to a safe height
if {state.currentTool >= 0} & {tools[state.currentTool].spindleRpm >= 0}
	set global.savedSpindleSpeed = tools[state.currentTool].spindleRpm ; save current spindle speed
	G1 X273.5 Y560 F2400 ; move XY to a safe place
	M5 ; turn the spindle off
	echo "Spindle speed saved at " ^ { global.savedSpindleSpeed } ^ "RPM"
else
	echo "condition not met - Tool is ", state.currentTool, " Spindle RPM is ", tools[state.currentTool].spindleRpm

and

resume.g

; first ensure we have an active tool
if state.currentTool =-1
	echo "No tool active.  Selecting tool zero"
	T0 ; select tool zero
if state.currentTool >= 0
	echo "Spindle state on tool " , state.currentTool , " is " ,   spindles[state.currentTool].state
if {state.currentTool >= 0} & {tools[state.currentTool].spindleRpm >= 0}
	M3 S{global.savedSpindleSpeed}	; resume saved spindle speed
	G4 S1					; wait 1 second to allow the spindle to spin up
	echo "Spindle speed resumed at ", spindles[state.currentTool].active, "RPM" ; this should show that the setting was successful
	G1 R1 X0 Y0 F2400	
else
	echo "condition not met.  Spindle speed remains at " , tools[state.currentTool].spindleRpm ,  "RPM"

EDIT:
Apologies.
I got the indenting on pause.g all wrong. (lack of sleep). Corrected above

Nightowl

@owend I'm happy to leave this for now, if you need to get some beauty sleep!

Here's the console text:

27/05/2022, 20:25:40 	M0
Cancelled printing file 0:/gcodes/Calibration Toolpath.gcode, print time was 0h 0m
27/05/2022, 20:25:27 	Printing paused at X128.8 Y122.6 Z66.0
27/05/2022, 20:25:26 	Error: in file macro line 20 column 81: meta command: array index out of bounds
27/05/2022, 20:25:24 	M25
Resume state saved
27/05/2022, 20:25:19 	M32 "0:/gcodes/Calibration Toolpath.gcode"
File 0:/gcodes/Calibration Toolpath.gcode selected for printing

PS You have nothing to apologise for!

OwenD

@nightowl999
All good.

Can you try this pause.g
I can't understand the index out of bounds if there's a tool selected.
There is no line 20, but you're probably getting extra carriage returns when copy/pasting

; pause.g
if state.currentTool = -1
	echo "No tool selected"
G1 Z{max(move.axes[2].userPosition+5,move.axes[2].max-5)} ; move the Z axis to a safe height
{if state.currentTool >= 0} & {tools[state.currentTool].spindleRpm >= 0}
	set global.savedSpindleSpeed = tools[state.currentTool].spindleRpm ; save current spindle speed
	G1 X273.5 Y560 F2400 ; move XY to a safe place
	M5 ; turn the spindle off
	echo "Spindle speed saved at " ^ { global.savedSpindleSpeed } ^ "RPM"
else
	echo "condition not met - Tool is ", state.currentTool, " Spindle RPM is ", tools[state.currentTool].spindleRpm

Nightowl

@owend Doing that now, but I REMd out the other lines, so that's why there's a line 20.

Not any more, though!

Nightowl

@owend Here you go...

27/05/2022, 20:38:47 	M0
Cancelled printing file 0:/gcodes/Calibration Toolpath.gcode, print time was 0h 0m
27/05/2022, 20:38:33 	Printing paused at X128.8 Y122.6 Z66.0
27/05/2022, 20:38:32 	No tool selected
Error: Bad command: {if state.currentTool >= 0} & {tools[state.currentTool].spindleRpm >= 0}
Error: in file macro line 6 column 36: meta command: array index out of bounds
27/05/2022, 20:38:30 	M25
Resume state saved
27/05/2022, 20:38:24 	M32 "0:/gcodes/Calibration Toolpath.gcode"
File 0:/gcodes/Calibration Toolpath.gcode selected for printing

Nightowl

@owend Should the wriggly brackets be after the second "if"?

I changed it anyway, and now get this in the Console:

27/05/2022, 20:46:49 	M0
Cancelled printing file 0:/gcodes/Calibration Toolpath.gcode, print time was 0h 0m
27/05/2022, 20:46:44 	Printing paused at X125.6 Y125.8 Z66.0
27/05/2022, 20:46:43 	No tool selected
Error: in file macro line 11 column 81: meta command: array index out of bounds
27/05/2022, 20:46:40 	M25
Resume state saved
27/05/2022, 20:46:35 	M32 "0:/gcodes/Calibration Toolpath.gcode"
File 0:/gcodes/Calibration Toolpath.gcode selected for printing

BTW, when I click pause, the spinde keeps running and the XY stays where it is, not returning to the safe XY.

OwenD

@nightowl999 said in CNC Pause and Resume config files:

Should the wriggly brackets be after the second "if"?

Yes, I thought I corrected that.

But now it's clear there's no tool selected when you are pausing.
Therefore none of the subsequent code can work as it relies on a tool being selected.
Is this a real job, or a dummy one?

I'm willing to bet this would work (if I haven't mage any syntax errors LOL)

; pause.g
if state.currentTool = -1
	echo "No tool selected - selecting tool zero"
	T0
G1 Z{max(move.axes[2].userPosition+5,move.axes[2].max-5)} ; move the Z axis to a safe height
if {state.currentTool >= 0} & {tools[state.currentTool].spindleRpm >= 0}
	set global.savedSpindleSpeed = tools[state.currentTool].spindleRpm ; save current spindle speed
	G1 X273.5 Y560 F2400 ; move XY to a safe place
	M5 ; turn the spindle off
	echo "Spindle speed saved at " ^ { global.savedSpindleSpeed } ^ "RPM"
else
	echo "condition not met - Tool is ", state.currentTool, " Spindle RPM is ", tools[state.currentTool].spindleRpm

EDIT
If this works then we need to know how many tools you have.

Nightowl

@owend I'll try it, but I'm aware you're tired (as am I!)

OwenD

@nightowl999 said in CNC Pause and Resume config files:

but I'm aware you're tired (as am I!)

It's 5:51 AM here. I'm tired because I woke at 3am and couldn't get back to sleep
Try it when you can and report back.

Nightowl

It works! And the spindle turns off with pause and on with resume!

Nightowl

@owend It's only 9pm here, but I've been trying to sort this all day!

OwenD

@nightowl999
OK,
So the problem was there was no tool selected.
I would have thought that was necessary to turn a spindle on, but maybe not.
If you have multiple tools then you'll need to consider how to store which tool was selected when you pause (if RRF doesn't store that in CNC mode)

Nightowl

@owend This is how my spindle is configured in config.g:

; Makita and relay configuration
M950 R0 C"out1+out7" L0:18000	; enable router relay on out7
M563 P0 S"Makita" R0 		; assign spindle 0 to tool 0 and name it Makita
T0				; select tool 0

This was only configured to turn the spindle off/on via a relay, but I figured I will need this resolved for when my speed-contollable milling motor turns up. My assumption is the speed thing isn't relevant as the DI isn't connected.

OwenD

@nightowl999
What happens in the console when you run
M98 P"0:/sys/config.g"

You're selecting T0, so I'm at a loss why it's not selected in your job.
Somewhere something is turning it off.

Nightowl

@owend said in CNC Pause and Resume config files:

M98 P"0:/sys/config.g"

From the command line?

OwenD

@nightowl999
yes

Nightowl

@owend
Only this:

27/05/2022, 21:02:24 M98 P"0:/sys/config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Error: in file macro line 66 column 27: meta command: variable 'savedSpindleSpeed' already exists

but I haven't 'rebooted' the Duet

OwenD

@nightowl999
OK
That error is normal if you haven't rebooted.

I'm at a loss why you have no tool selected when pause.g begins unless RRF deselects it when G25 is run.

I've been looking through the object model a bit and I think you can do away with teh global variable and use values from the object model.
I'll post something to try in 5-10 minutes

Nightowl

@owend If you're sure. I don't want to stress you (or me!) out trying to resolve this. I thought this would be easy

I'm going back to the hous, but I'll update the files when you post the answer ( ) and I'll try it out toorrow morning (my time).

I'm really grateful for your time and help with this, @OwenD

OwenD

@nightowl999

Try these

; pause.g
G1 X273.5 Y560 F2400 ; move XY to a safe place
M5 ; turn the spindle off

and

;resume.g
if state.restorePoints[0].toolNumber =-1
	"echo no tool was saved- selecting T0"
	T0
else
	T{state.restorePoints[0].toolNumber} ; select the tool that was active
if state.restorePoints[0].spindleSpeeds[0] = 0
	echo "No resume speed was saved"
else
	M3 S{state.restorePoints[0].spindleSpeeds[0]}	; resume saved spindle speed
	G4 S1					; wait 1 second to allow the spindle to spin up
	echo "Spindle speed resumed at ", state.restorePoints[0].spindleSpeeds[0], "RPM" ; this should show that the setting was successful

Forgot to comment "resume.g" corrected.
Also I have no way of checking what's stored in the restore point arrays.