load unload macro with endless loop and cancel condition

A Former User

Thanks everybody,
because of the code-snippets posted by you I was able to implement it in a way I am happy for now:

duet2ethernet1.0.4 with RRF3.1.1

load:

; https://duet3d.dozuki.com/Wiki/Filaments

; load.g



if (state.currentTool=-1)
    M291 P"No tool active" R"Can't proceed" S1 T10
    abort;

M703								;load from filament-config.g:
G10 S235 							; Set current tool temperature S___ ,for PETG 230-255°C
;G10 S___							; get from filament-config.g

M291 R"...heating up hotend..." P"...for loading filament..." S0 T100 				; Display message P=main-message R=secondary-message T=timer in sec

;https://duet3d.dozuki.com/Wiki/Gcode#Section_M116_Wait
;M116																			; Wait for ALL temperatures to be reached (if no secondary parameters like H, C or S are defined)
M116 P0																			; Wait for P0=Tool0 to reach temp
;M116 P_			; make automatic for tool selected

M292 ; Clear messages



; reliable max speed for extrusion seems to be below 10mm/s for PETG, retract can be higher
M83 																			; Extruder to relative mode

;old style fix:
;G1 E50 F200 												; Feed+/Retract- E__mm of filament at F___mm/min
;G1 E250 F500 												; Feed+/Retract- E__mm of filament at F___mm/min
;M400 														; Wait for moves to complete
;G4 P5 														; Wait/Dwell P___ MILLIsecond(s), S___ second(s)
;G1 E-2 F1000 												; Feed+/Retract- E__mm of filament at F___mm/min

;new style interactive:
M400 ; wait for moves to finish
while true
    if iterations = 25
       break
    ;M292 ; Clear messages
    M291 P"Press OK to feed 50mm of filament (or CANCEL to abort)" R"Extrude?"  S3
    M291 P"...moving the filament..." R"...wait..."  S0 T50		; make long enough to be displayed longer then it takes to extrude
    G1 E50 F250 												; Feed+/Retract- E__mm of filament at F___mm/min
    G1 E-2 														; Feed+/Retract- E__mm of filament at F___mm/min
    M400 ; wait for moves to finish
    ;M292 ; Clear messages
M400 ; wait for moves to finish



M291 R"Done loading" P{move.extruders[state.currentTool].filament ^  " Filament"} S1			; Display new message
; set all back
G10 S0 																			; Set current tool temperature S___
;M292 																			; Hide message

unload:

; https://duet3d.dozuki.com/Wiki/Filaments

; unload.g


if (state.currentTool=-1)
    M291 P"No tool active" R"Can't proceed" S1 T10
    abort;

M703								;load from filament-config.g:
G10 S220 							; Set current tool temperature S___ ,for PETG 230-255°C
;G10 S___							; get from filament-config.g

M291 R"...heating up hotend..." P"...to unload filament..." S0 T100 				; Display message P=main-message R=secondary-message T=timer in sec

;https://duet3d.dozuki.com/Wiki/Gcode#Section_M116_Wait
;M116																			; Wait for ALL temperatures to be reached (if no secondary parameters like H, C or S are defined)
M116 P0																			; Wait for P0=Tool0 to reach temp
;M116 P_			; make automatic for tool selected

M292 ; Clear messages



; reliable max speed for extrusion seems to be below 10mm/s for PETG, retract can be higher
M83 																			; Extruder to relative mode

;old style fix:
;G1 E50 F200 												; Feed+/Retract- E__mm of filament at F___mm/min
;G1 E250 F500 												; Feed+/Retract- E__mm of filament at F___mm/min
;M400 														; Wait for moves to complete
;G4 P5 														; Wait/Dwell P___ MILLIsecond(s), S___ second(s)
;G1 E-2 F1000 												; Feed+/Retract- E__mm of filament at F___mm/min

;new style interactive:
M400 ; wait for moves to finish
while true
    if iterations = 25
       break
	;M292 ; Clear messages
	M291 P"Press OK to un-feed 50mm of filament (or CANCEL to abort)" R"Un-load?"  S3
	M291 P"...moving the filament..." R"...wait..."  S0 T50		        ; make long enough to be displayed longer then it takes to extrude
	G1 E-47 F500 																	; Feed+/Retract- E__mm of filament at F___mm/min
	G1 E-3 F300 																	; Feed+/Retract- E__mm of filament at F___mm/min
	M400 ; wait for moves to finish
	;M292 ; Clear messages
M400 ; wait for moves to finish



M291 R"Done unloading" P{move.extruders[state.currentTool].filament ^  " Filament"} S1			; Display new message
; set all back
G10 S0 																			; Set current tool temperature S___
;M292 																			; Hide message

Thanks!

Please close as "solved"

Krohm Koala

@LB Do you ever have the message done loading/unloading ? I tried your solution but as soon as i cancel the purge, it kills the macro and don't finish it.

OwenD

@Krohm-Koala said in load unload macro with endless loop and cancel condition:

@LB Do you ever have the message done loading/unloading ? I tried your solution but as soon as i cancel the purge, it kills the macro and won't finish it.
likewise in the above case, abort would kill the macro (and print)

At present if you hit cancel in an M291 S3 dialog it will cancel the macro, so no, you would never get the finished message in that instance.

There was discussion about adding a third option to M291, but it doesn't seem to be on the current list for implementation.
Perhaps some some time after 3.2 is finalized.

A Former User

@OwenD said in load unload macro with endless loop and cancel condition:

@Krohm-Koala said in load unload macro with endless loop and cancel condition:

@LB Do you ever have the message done loading/unloading ? I tried your solution but as soon as i cancel the purge, it kills the macro and won't finish it.
likewise in the above case, abort would kill the macro (and print)

At present if you hit cancel in an M291 S3 dialog it will cancel the macro, so no, you would never get the finished message in that instance.

There was discussion about adding a third option to M291, but it doesn't seem to be on the current list for implementation.
Perhaps some some time after 3.2 is finalized.

@OwenD
Thanks for pointing this out! That is what I assumed! Conditional G-code is pretty new, so not everything can be there from the start. But over time I guess there will be an option so I just let the code there to change it whenever the solution arrives...
@Krohm-Koala
To be honest I feel settled with the no "final" message since anyway in DWC it shows you that it has loaded everything -> since I currently only work with printers with only 1 extruder (and no colourchanger or stuff like that) the filamentchange-code posted is good enough for me now... hope you understand

Krohm Koala

@LB Totally understand it's just me who want too much

garethky

I just did this and I deeply loath writing a macro for every filament. I'll have to go back and try G701 inside load/unload to save some extra lines that are not totally DRY. Here is what I did:

each filament has a config that defines some variables

; set filament name, temperature and speed "variables"
M563 P5 S"PLA"
G10 P5 X215 Y300

; set retraction parameters
M207 S0.4 F2100

When I make a new filament, this is a bsically all I have to do now.

Then load.g and unload.g just load up those variables and call a macro (this is where I need to try M703):

M98 P"/filaments/PLA/config.g" ; the filament config isn't loaded until AFTER this macro runs, but we need the variables set now.
M98 P"/macros/Filament/loadFilament.g"

Then my load macro looks like this:

; loadFilament.g

; ask the user if they really want to light up the heater and load some filament
M291 S3 P{"Click OK to heat to " ^ tools[5].offsets[0] ^ "C and load " ^ tools[5].name} R{"Load " ^ tools[5].name ^ "?"}

; Set current the configured temperature and wait for the extruder to reach temp
M109 S{tools[5].offsets[0]}

; Pause and ask the user to position the filament for feeding
M291 S2 P{"Load filament in the extruder and click OK to start loading " ^ tools[5].name} R{"Ready to Load " ^ tools[5].name} 

M83 ; Extruder to relative mode

; rapidly feed filament from the gears to the bottom of the heat break
G1 E58 F900 ; Feed 58mm of filament at 15mm/s
G1 E30 F300 ; Feed 30mm of filament slowly

; purge and ask for more loop
while true
    G1 E30 F300 ; Feed 30mm of filament slowly
    M400; Wait for moves to complete

    ; ask the user if they want to do that again?
    M291 S3 P{"Click OK to purge some more"} R{"Continue purging?"}

So it asks put the temps and the filament name in all the messages. Plus it has a loop to purge more plastic and you can keep doing that as long as you want. (See the whole commit on github)

When variables are implemented this will become so much less ugly.

My next challenge is finding a way to check, at print start, if the filament/tool pairings in the print match the filaments configured on the tools in in the printer and abort if they don't

A Former User

@garethky

Hi, really impressive - hat´s off!
It is promising to us all to simplify things by getting rid of redundant code via "links" & "variables"!

What I do not understand by looking at the code:

-> How does this work with the code you just posted, because is RRF not looking for the "un-"/"load.g" within the filament-folder of the selected filament? Since yours seems to be within the macros/filaments/ how does it find it automatically without throwing an error?
-> Does this work really automatic with pressing within e.g. DWC here:

@dc42

What I really like:

It does make sense to have a general/1-for-all un-/load.g one layer "before" in the folder-structure within Files/Filaments so to say, and to only be able to "overwrite" it with a more specific un-/load.g within that filament-folder, IF a special filament really needs it I guess That way we could get rid of some redundant code?

-> Wouldn´t some sort of it be cool as the general layout? Or did I oversee something here

Krohm Koala

@LB Personnally, i've updated my filament change macro to have specific heat file by filament, it's not the most intuitive at first, but now that i have all my files, it's insanely good to use, i also add an axe movement to choose the filament i'm loading wich is also useful, loading a config file at the end could be easy to add but don't need it now, thanks to meta code
I hope the endless loop for purging could be done at one time but it's already good now

M291 P"Mettre les chauffes et changer le filament ?" R"Changement du Filament" S3
M80
T0 P0		;Select tool
M106 S0

M98 P{"0:/filaments/" ^ {move.extruders[state.currentTool].filament} ^ "/e-heat.g"}

M291 P"Mise aux origines..." R"Changement du Filament" S0 T30
G28 ; homing
M291 P"Mise à la position de purge..." R"Changement du Filament" S0 T30
G1 X253 Y-5.9 F12000 ; aller à la position de purge
while heat.heaters[1].current <= heat.heaters[1].active
    M291 P"Chauffes en cours... Veuillez Patienter..." R"Changement du Filament" S0
if sensors.filamentMonitors[0].status == "ok"
    M291 P"Déchargement en cours, veuillez patienter..." R"Changement du Filament" S0 T30

    G1 E5 F150     ;Extrude 10mm filament at low speed
    ;G1 E-15 F500	;Retract 15mm filament at low speed 
    G1 E-100 F3600	;Retract 100mm filament at high speed
    M400

    while sensors.filamentMonitors[0].status == "ok"
        M291 P"Merci de retirer le filament." R"Changement du Filament" S0 T30
        G4 S0.1  ;attendre 0.1s pour éviter de surcharger le processeur
    while true
        if sensors.filamentMonitors[0].status == "noFilament"
            M291 P"Filament déchargé, merci d''insérer le nouveau filament." R"Changement du Filament" S0 T30
            G4 S0.1  ;attendre 0.1s pour éviter de surcharger le processeur
        else
            break
else
    while true
        if sensors.filamentMonitors[0].status == "noFilament"
            M291 P"Aucun filament, merci d''insérer un filament." R"Changement du Filament" S0 T30
            G4 S0.1  ;attendre 0.1s pour éviter de surcharger le processeur
        else
            break

G4 S0.7  ;attendre 1s pour laisser le temps d'insérer le filament

M291 P"Chargement en cours...." R"Changement du Filament" S0
M106 S255  ;mise en route du ventilateur pour refroidir la purge

G1 E65 F3600	; extrude 65mm at high speed
M83     	; mode d'extrusion relative
G1 E20 F200	; extrude 10mm at low speed

M400
M98 P"/macros/Filament/Purge.g"

G1 Z0.1 F200    ;Essuyer la purge
G1 X0 F12000
G1 Z20 F3000
M106 S0

M291 P"Filament chargé. Merci de définir le nouveau filament." R"Changement du Filament" S2
M291 P"Déplacez l''axe X pour choisir le filament voulu. 0 = Aucun Changement / 1 = PLA / 2 = PETG / 3 = TPU" R"Changement du Filament" S2 X1
if move.axes[0].machinePosition < 1
elif move.axes[0].machinePosition < 2
    M702
    M701 S"PLA"
elif move.axes[0].machinePosition < 3
    M702
    M701 S"PETG"
elif move.axes[0].machinePosition < 4
    M702
    M701 S"TPU"

M291 P{"""" ^ move.extruders[0].filament ^ """ a bien été défini comme filament chargé."} R"Changement du Filament" S2
M98 P{"0:/filaments/" ^ {move.extruders[state.currentTool].filament} ^ "/heat.g"}

garethky

@LB

For whatever reason my version of RRF seems happy finding these paths (3.1.1, Duet 3 with a Pi attached). I've actually tried to use relative paths, but found that they are all relative to /sys/. If you are having trouble there is an absolute path option for M98 that starts from 0:/some/path/macros/filaments/loadFilament.g.

Yes this it totally automatic from the GUI!

I had another idea last night that im going to try: maybe the filament name is somewhere in the Object Model after M703 gets run and I don't have to use that extra tool to store the filament name string. I'll work on it some more today.

dc42

The filament name is available in the OM as move.extruders[n].filament.

garethky

Thanks everyone for the props and the new information. I was able to get rid of that "virtual tool" and use the object model for the filament name. I tried M703 but it doesn't work in the filament load script, so I have to execute the config file with a macro call instead.

So now that I lost my virtual tool I needed somewhere to store the temprature and feed rate. I looked into this idea of "virtual axes" so I could store the filament settings per-tool rather than globally. This took some trial and error and I still have some warnings in the console but it work. And once I had gone that far I didn't see any reason not to do the same thing to tool changing, no reason that cant be just 3 macros either!

I'm using the A axis to store the filament temp, B for the slow feed rate, U and V to hold the machine absolute coordinates of each tool and S to hold the nozzle diameter. then I use expressions like {tools[state.currentTool].offsets[7]} and Y{tools[state.nextTool].offsets[8]} to get the setting from the appropriate tool in the macros.

Firmware 3.2 fixes the bug with G1 commands not accepting expressions so now the feed rate setting works as well and my flexibles wont shoot out the side of the extruder

I'm not going to attempt to post all of the code here, that's what github is for: https://github.com/garethky/E3D-ToolChanger-Configuration/compare/8ee9b057f122e24b47c47b57480a3bb26d76375d..206529f2f50617df253abac9db369fd81ff42fc8

Cheers!

A Former User

@garethky
@Krohm-Koala

I got 2 questions for giving the approach to only have 1 load.g/unload.g with in the general filaments folder a try (also that needs a workaround with a macro in each filament to point to the general file):

1st
for the individual load.g that is more or less only a macro-call-file for the general parametric ones you had post the example

M98 P"/filaments/PLA/config.g" ; the filament config isn't loaded until AFTER this macro runs, but we need the variables set now

With the new move.extruders[n].filament that could be something like

M98 P"/filaments/move.extruders[0].filament/config.g"

Or wouldn´t just M703 be sufficient
?

2nd
How can I fetch the nozzle-temperature from the material (beside calling M703 of course), now I have:

G10 S235 							; Set current tool temperature direct S___

-> Would that become something like:

G10 S{heat.heaters[1].active} ;fetch from what is in filament-config.g of selected filament

?

3rd
And for the temperature-reach-wait now

M116 P0

-> would that be something like:

M116 P{tools[0]} ; wait for temps to be reached - for tool selected

?

Looking at the object model that comes with RRF3.2, but I will only learn how to use it - every help appreciated

garethky

#1 That's a good optimization! I upgraded to 3.2 firmware and now it seems that the Filament name is not set in the object model when load gets called. I haven't had a chance to investigate further. M703 didn't work there on 3.1.1. I have to go back and experiment again in 3.2

#2 I have 2 ideas:
First idea: If you don't have a tool selected (maybe its the beginning of the print) then this should work:

T-1
T2 P0   ; set the active tool but do not run the tool change macors
M703

; do whatever needs doing with the filament settings

T-1 P0

This should also be a durable solution long term.

Second idea: storing per-tool filament settings in the work offset system. I got started with some of the ideas over in this thread: https://forum.duet3d.com/topic/20681/virtual-axis-break-stall-detection/6?_=1610137141350

My end goal with this is to have enough information to write a Live-Z calibration print that uses the math expressions for the extrusion lengths so they adapt to the filament diameter and nozzle diameter to print an accurate test pattern regardless of machine configuration. This doesn't require that I have access to multiple tool temperatures at the same time, so M703 will work for me.

#3 In my tpost.g macro I have this to handle getting the tool up to temp:

; wait for hot end temp
M116 P{state.currentTool}

Krohm Koala

@LB
1st
it'll be that to load the config.g of the current loaded filament

M98 P{"0:/filaments/" ^ {move.extruders[state.currentTool].filament} ^ "/config.g"}

2nd
You can do as i've done, create a heat.g file in each filament, in wich you put your G10 (and maybe the bed temp also, i've separate the two and made a file that call the two macros) so you'll just have to call

M98 P{"0:/filaments/" ^ {move.extruders[state.currentTool].filament} ^ "/heat.g"}

3rd
@garethky line is the way to go

A Former User

@garethky

Thanks!
1.
yeah now in my filament specific load/unload there is just a macro that points to the one and only load/unload for all the filaments since I get the temperatures from the filament-config.g
2.
have to think about it or even better: try it out
3.
THANKS! Now it works!

A Former User

@Krohm-Koala

Thanks!
1.
~~Thanks now it works but I had to take out the last "/" before config.g~~
2.
Yep
We are some sort of "brothers in lazyness" I guess
3.
What? I do not get it...

Krohm Koala

@LB the 3 was just saying that the @garethky gcode was right (sorry if it have a meaning or something that i don't understand, i haven't the greatest english x) )
It's weird that you had to take the last "/" before config.g, it's working for me ^^

A Former User

@Krohm-Koala said in load unload macro with endless loop and cancel condition:

@LB the 3 was just saying that the @garethky gcode was right (sorry if it have a meaning or something that i don't understand, i haven't the greatest english x) )
It's weird that you had to take the last "/" before config.g, it's working for me ^^

YOU are correct here -> That was an error of me, because when no filament is yet selected ("empty tool") that just threw an error SORRY -> YOU are correct here!

Krohm Koala

@LB Nice that it works now

A Former User

@Krohm-Koala said in load unload macro with endless loop and cancel condition:

@LB Nice that it works now

It is not "really" working clean and cool, rather a big "workaround" to get it done somehow, but let´s see how this all evolves the next month.