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Pausing a Print Overnight  

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c4v
 c4v
(@c4v)
Active Member
Pausing a Print Overnight

Help! 

I purposedly paused a long print overnight, left the bed, and tool on low heat. Then I woke up this morning to resume printing, but I pressed resume printing on my Octopi and noticed it remained on resume, but nothing would happen. I noticed the temperature was now zero, so I went over to the printer to find a message that says "heating disabled by safety timer" and I don't know what to do now. If I hit the X button on the printer, will that resume my print or will it cancel the entire print job? Right now, Octopi just says "Resuming" but nothing happens.

Posted : 30/11/2020 2:43 pm
Neophyl
(@neophyl)
Famed Member
RE: Pausing a Print Overnight

the x button is reset so that will definitely clear the print.  Dont use octoprint so cant advise on the correct sequence to resume (if its at all possible even at this point).

Posted : 30/11/2020 3:39 pm
c4v liked
Delarado
(@delarado)
Trusted Member
RE: Pausing a Print Overnight

If it were me, I'd use the Gcode command to re-set the nozzle temp via the terminal

https://marlinfw.org/docs/gcode/M104.html

Or maybe..

https://marlinfw.org/docs/gcode/M109.html

I'd then try and resume the print... 

Bear in mind I got my first 3d printer a few days ago though!

Posted : 30/11/2020 11:13 pm
c4v liked
c4v
 c4v
(@c4v)
Active Member
Topic starter answered:
RE: Pausing a Print Overnight

@neophyl

Thank you for your response. I was trying to save the print, in the end, it did not work. The only option I had was to press the X button. I had to start over, boo. What I was told by someone in the chat @ Prusa was to use the card when printing something that may require me to pause. Thanks for trying to help though! 🙂 

Posted : 01/12/2020 12:55 am
c4v
 c4v
(@c4v)
Active Member
Topic starter answered:
RE: Pausing a Print Overnight

@delarado

I didn't know about these resources, thank you so much for sharing! I wish I had seen this earlier to try it. We got on with someone from Prusa who tried to help us, but we ended up printing the x button and because the bed was cold my print came off. They suggested using the card and not OCtopi when needing to pause again in the future. I will keep this in mind though, learned something new! 

Enjoy your printer, it is so much fun!

Posted : 01/12/2020 12:59 am
Delarado
(@delarado)
Trusted Member
RE: Pausing a Print Overnight

@c4v

No problems!

There are Gcode commands for warming the bed up too... but if the bed has also switched off due to inactivity, its probably not a good idea to warm it and cool it and warm it again in a single print.

I often use Gcode commands during prints if I feel the printer is going too fast, or i get too much stringing etc. It's not something I'd recommend for "production" prints, but you can put commands into the terminal in octoprint to change some settings on the fly for testing.

I have a square box I print in vase mode for example, then I change nozzle temp and speeds to tune the filament for best results on a single wall.

Posted : 01/12/2020 1:35 am
c4v liked
c4v
 c4v
(@c4v)
Active Member
Topic starter answered:
RE: Pausing a Print Overnight

By the way, if you print from the SD card you can pause a print and then go to sleep for hours, come back and hit resume and it works! But it is better if you do it from the SD card and not Octoprint in this case. I did two prints already that were going to take 20 hours and needed to do that to go to sleep. It worked great!

Posted : 06/12/2020 2:59 am
c4v
 c4v
(@c4v)
Active Member
Topic starter answered:
RE: Pausing a Print Overnight

@neophyl

By the way, if you print from the SD card you can pause a print and then go to sleep for hours, come back and hit resume and it works! But it is better if you do it from the SD card and not Octoprint in this case. I did two prints already that were going to take 20 hours and needed to do that to go to sleep. It worked great!

Posted : 06/12/2020 3:00 am
PrintingD
(@printingd)
Active Member
RE: Pausing a Print Overnight

Having read the above, I tried both ways.

I printed with Octoprint, paused, turned off fans, decreased the extruder temp, kept the bed hot, went to sleep, found the error about temp and sure enough the bed and cooled down. Luckily the print did not disconnect from the bed so I was able to keep printing next morning. But seems like this is a BAD plan.

I also tried a different print with the SD card, pausing from the LCD screen. Went to sleep, woke up next morning and resumed no problem.

It seems that ultimately the SD card is the way to go until someone fixes this relationship with Octoprint for prolonged pauses.

 

Posted : 08/07/2021 5:16 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Pausing a Print Overnight

@printingd

I started printing via Octoprint (1.6.1) and paused printing via Octoprint after c. 5 minutes. I did not change the bed and print temperature (90/240). After about half an hour, I continued printing via Octoprint and it finished without errors. In principle, the communication with Octoprint works. However, I still have installed FW 3.8.1 on my MK3. However, the MK3-Octoprint communication is still expandable, especially with regard to pause functions. In the MK3 FW 3.10.0 optimizations are supposed to have been implemented in this regard.

wbr,

Karl

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Posted : 08/07/2021 7:14 pm
PrintingD
(@printingd)
Active Member
RE: Pausing a Print Overnight

I'm using firmware for Prusa 3.10.0, Octoprint 1.6.1, i3 MKS+/MMU2S with raspberry pi 3.

I'm not talking about a brief pause - I'm talking about a prolonged overnight pause. (unless you sleep only 1 hour)

The "heating disabled by safety timer" came up for me, I clicked the button, and then resumed temps and fan to resume my print. This worked, but as I said above, if the model would have detached from my bed I would have been in trouble - I got lucky doing this once. But in the future until someone sorts out how to avoid the heating disabled by safety timer issue, I will be stuck using the SD card.

 

Posted : 08/07/2021 7:20 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Pausing a Print Overnight

@printingd

the safety timer is normally activated after 30 minutes of idle time, which it did not do for me (after Octoprint pause), even if I had waited 5 or more hours. Perhaps this is an acceptable interim solution:

You can also change the safety timer values https://reprap.org/wiki/G-code#M86:_Set_Safety_Timer_expiration_time

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Posted : 08/07/2021 7:39 pm
PrintingD
(@printingd)
Active Member
RE: Pausing a Print Overnight

Wow. So you are suggesting the following:

1. pause in Octoprint

2. turn off fans, set tool to 0 and bed to remain hot.

3. send manually this

M86 43200

(that is 12 hours worth of seconds)

 

Has anyone tried this?

Posted : 08/07/2021 7:57 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Pausing a Print Overnight

@printingd

I would insert M86 Sxxxx at the beginning of the PS gcode and add the octoprint pause with the desired commands in octoprint gcode scripts (nozzle off, fan off.....). I have not tested it myself, but I'm curious about your feedback .

 

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Posted : 08/07/2021 8:06 pm
PrintingD
(@printingd)
Active Member
RE: Pausing a Print Overnight

I did this. I used

M86 S43200

in octoprint, and turning fan off, setting tool to 0, waited 6 hours, the whole time the bed stayed warm no timeout, and I was able to resume without a hitch (after putting fan back on and resuming tool temp).

thanks!

Posted : 09/07/2021 11:13 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Pausing a Print Overnight

@printingd

Thanks for the feedback and continue to succes 👍 

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Posted : 10/07/2021 12:16 am
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