Power failure and resurrection on a CNC machine

[Nightowl]

@infiniteloop No, sorry. I get exactly the same error

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

No, sorry. I get exactly the same error

OK, let's see … Could you please compare your RestoreSpindleSpeed.g with this here:

; RestoreSpindleSpeed.g
; Spindle speed saved from running "null" CNC file
 
; set up the global variable abort_process so we can abort further execution of resurrect.g:
if {!exists(global.abort_process)}
    global abort_process = true
else
    set global.abort_process = true
 
; now comes the dialog:
M291 S3 R"Resurrect:" P"Continue with <null>?"
 
; we will only arrive here if the dialog was closed with OK:
set global.abort_process = false
M3 S0
 
;EOF

I generated this without a job running, that's why the CNC file name is "null", and without a spindle, M3 will always be told a speed of 0 RPM.

[Nightowl]

@infiniteloop Erm, my file looks like this...

; RestoreSpindleSpeed.g
; Spindle speed saved from running "0:/gcodes/Calibration Toolpath.gcode" CNC file
 
; set up the global variable abort_process so we can abort further execution of resurrect.g:
if {!exists(global.abort_process)}
 

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

I just noted a difference between your resurrect-prologue.g and the template I sent you - here's my version:

if {global.abort_process == true}

and here's your corresponding line:

if global.abort_process == true

You see the difference?

[Nightowl]

@infiniteloop I do, yes. I tried it at that, but changed it back to using the squiggly brackets, as it made no difference.

They're currently in place, as per your version.

; resurrect-prologue.g
M98 P"RestoreSpindleSpeed.g"
if {global.abort_process == true}
	abort
; abort terminates this and all other macros in the call chain, so 'rien ne va plus'
; Continuation has been approved, so here we go:"
M98 P"homeall.g"	; homes all axes before restarting the job
{1}

I don't know why there are two {1} showing at the end of the file, though. There's only 1 in the actual file!

Where is the global.abort_process declared, or is it a ssytem variable?

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

Erm, my file looks like this...

That's a radically abbreviated version…

Either, your SaveSpindleSpeed.g has been truncated so that it just generates 4 lines of output, or we see the result of too little power left after pulling the plug.

[Edit] First, please check your copy of SaveSpindleSpeed.g carefully against the posted version. If both are equal, call SaveSpindleSpeed.g from the console:

• throws it an error?
• looks the resulting RestoreSpindleSpeed.g like the one I posted above?

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

I don't know why there are two {1} showing at the end of the file

I'm not quite sure, either, but I think they indicate empty lines.

[Nightowl]

@infiniteloop said in Power failure and resurrection on a CNC machine:

but I think they indicate empty lines.

Maybe you're right about the powerloss, then, or (sorry for asking again) the global.abort_process variable hasn't been declared?

[infiniteloop]

@nightowl999 I've added some hints to my post above. Please try them …

[Nightowl]

@infiniteloop It says the file's not found, but it's deffo there in my \sys folder!

Error: in file macro line 28 column 26: meta command: control character in string

OK, there was a " missing on the last line...

[Nightowl]

@infiniteloop Now the file looks like this:

; RestoreSpindleSpeed.g
; Spindle speed saved from running "null" CNC file
 
; set up the global variable abort_process so we can abort further execution of resurrect.g:
if {!exists(global.abort_process)}
    global abort_process = true
else
    set global.abort_process = true
 
; now comes the dialog:
M291 S3 R"Resurrect:" P"Continue with <null>?"
 
; we will only arrive here if the dialog was closed with OK:
set global.abort_process = false
M3 S0
 
;EOF

I'll have another go at the power fail test...

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

Now the file looks like this:

That's perfect. Before pulling the plug again, you should call resurrect-prologue.g from the console to see if you still get an error. Note, however, that your router might execute the homing moves if the construct works as expected.

[Nightowl]

@infiniteloop

Same problem. Only half a RestoreSpindleSpeed.g file...

[Nightowl]

@infiniteloop

OK, so I called resurret-prologue.g which gave a prompt to carry on. I clicked OK and the homing sequence completed.

Then i got these errors:

31/05/2022, 12:19:04 	M292
Error: Bad command: {1}
31/05/2022, 12:19:04 	m98 P"resurrect-prologue.g"
Error: Bad command: {1}

EDIT: I've deleted the {1}

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

Same problem. Only half a RestoreSpindleSpeed.g file...

So we've localised this problem: rapid power loss …

In the meantime, please test with a RestoreSpindleSpeed.g which you generate from the command line

M98 P"SaveSpindleSpeed.g"

Proceed as suggested in my last post. Feel free to edit the S parameter of M3 if want your spindle to turn

[Nightowl]

@infiniteloop

That seems to work now.

Shall I try the ultimate test?

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

Then i got these errors:

That are these empty line marks who seem to be generated when I put my stuff into the code (black) box.
Simply remove all occurrences of {1}… I just see: you did that already while I was writing

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

Shall I try the ultimate test?

Without enough power to safely complete macro execution at power off, what is the definition of "ultimate"?

[Nightowl]

@infiniteloop As everything is hunky dory, the "ultimate" test would be to see if everything does work. If not, a UPS might be in order

[infiniteloop]

@nightowl999 said in Power failure and resurrection on a CNC machine:

a UPS might be in order

Do you have a separated 5V rail (with its own PSU) just to power the Duet?