My print bed is not cooling after print
I've noticed that my print bed is not cooling when the print is finished. Eventually (30 minutes?), it times out and will start cooling, but that is very annoying because it generates a warning and requires me to physically access the printer again. I assume this is a Slicer setting that I messed up somewhere. Any suggestions?
RE: My print bed is not cooling after print
Does your Printer settings, Custom Gcode, End Gcode, contain something like this?
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE:
Yes, it does. Here's the entire block of "End G-Code"
G4 ; wait
M221 S100
M104 S0 ; turn off temperature
M140 S0 ; turn off heatbed
M107 ; turn off fan
{if layer_z < max_print_height}G1 Z{z_offset+min(layer_z+30, max_print_height)}{endif} ; Move print head up
G1 X0 Y200 F3000 ; home X axis
M84 ; disable motors
However, looking closer, my generated .gcode file has NO M140 commands. The last gcode of the file does not look like that.
Here is how the .gcode file is ending (not counting all the comment lines showing me settings):
;TYPE:Custom ; Filament-specific end gcode M104 S0 ; turn off temperature G28 X0 ; home X axis M84 ; disable motors
RE: My print bed is not cooling after print
Please save a project file from Prusa slicer (File>Save Project As) and then take the .3mf produced ZIP it up and attach the zip file here.
A PS project file will have copies of all your settings which we can use to diagnose the issue. It's the quickest way to get help.
RE: My print bed is not cooling after print
Hmmm... I Don't know what would cause the M140 command to not appear, try editing the Custom Gcode, End Gcode, adding a new line, before M84 and insert
M140 S0 on it's own, then try slicing the STL again
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: My print bed is not cooling after print
"empty" (no model) slicer project attached.
RE: My print bed is not cooling after print
If I load your project file and add a simple box so I can slice and output the gcode then the file it produces does have the required commands to turn off the bed.
G4 ; wait M221 S100 M104 S0 ; turn off temperature M140 S0 ; turn off heatbed M107 ; turn off fan G1 Z54.95 ; Move print head up G1 X0 Y200 F3000 ; home X axis M84 ; disable motors M73 P100 R0 M73 Q100 S0
As shown above. What I am wondering about though is why in your printers End G-code section above you have G4 command in there with no parameter. G4 is dwell. Which means wait. With no defined time period to wait.
What is more puzzling is that your original listing of the gcode output is completely different to your profiles end block, not just a missing M140.
I also note from the project that the printer profile that you are using octoprint. One of its strengths is its ability to alter gcode. Could your issue be from some octoprint setting or configuration ? Octoprint has been known to cause some issues in the past but I'd say the chances of that in this case are slim but worth ruling out.
If you load in your own saved project (the one you attached) and slice it then save the gcode to your hard drive rather than octo (taking octoprint out the equation entirely) does the gcode when opened in a text editor have the different end block ?
One suspicious coincidence I also notice from your original post detailing the end gcode- have you looked at the contents of the tooltip you get when you hover over the end gcode section in Prusa Slicer ? Your listed gcode is identical to the contents of the tool tip. That would suggest that ON YOUR COMPUTER the profile has no end gcode. Even though it is there and you can edit it.
I have seen similar things in the past with corrupted profiles. Those are often caused by installing profiles downloaded from the internet. They don't have to even be printer profiles. Loading a malformed print/filament or printer profile can cause issues. For example if the print profile had a block of end gcode or even the xml tags for an end gcode block, that should normally be in the printer profile then it could over ride the one from the printer. The problem is you cant see it to edit it as the gui doesn't display it in that section and so no matter what you set in the printer profile it just wont be used. Not saying the issue is that but it wouldn't surprise me.
The only way to check that would be to zip up your entire config directory and attach it or for you to use a text editor and go through the profiles yourself. You can also check if you select system default print, filament and printer profiles and slice a cube and check the output matches what is configured. The select your potential problematic profile one by one and slicing and checking the output each time.
The installing of malformed profiles was supposed to have been fixed only recently but if anything was in there previously then it would still be there.
RE: My print bed is not cooling after print
Octoprint doesn't make sense, since I see the "problem" in my sliced gcode before it's involved. When I hover over the "end gcode", the tooltip shows what is generated, not what the edit-box shows, so file corruption makes sense (which a very weird behavior, IMO). The only configurations stuff I have from the Internet is straight from Prusa.
I have some vague memory of having crashes or fatal errors after an upgrade (not sure if it was the slicer or the profiles/configs). My fix for it was to restore the config file it was complaining about from backup, that further has me leaning into the corruption. So, I switch back to a preset for the Print configuration, and the end-gcode is correct when I sliced it. I look at the .ini file for that Print config, and I don't see any corruption. I've attached it for your perusal.
If practical, I'd prefer to find and fix the corruption, rather than blow it away and start over, so please let me know what you find.
RE: My print bed is not cooling after print
Sorry theres nothing attached to your last post for me to look at. If you do get it attched I will gladly take a look through.
RE: My print bed is not cooling after print
Sigh. I'm pretty sure it was attached. I certainly see it now.
RE: My print bed is not cooling after print
Sorry still nothing on the previous or new replies.
RE: My print bed is not cooling after print
I'm going to guess the forum software is silently dropping files that are not .zip? This time I zipped it.
RE: My print bed is not cooling after print
Lol, I did mention in my first reply that you had to ZIP files to attach them. Its why I assumed you zipped your 3mf up. And yeah it wont allow most attachments so ZIP is the defacto way of attaching anything but pics. And even pics can be weird sometimes.
I am generally not impressed by the wordpress framework.
RE: My print bed is not cooling after print
Also the single ini file is not what I meant about looking for corrupted profiles. To be specific you would need to zip up a copy of your entire config directory. We would need to see the whole thing. The folder listed under Help>Show Configuration Folder. It contains all the profiles. So it would have all your print, filament and printer profiles etc.
The corrupted profiles problem is when specific profiles contain settings they shouldn't. So for example your print profile should contain A,B,C, your filament profile D,E,F and your Printer profile X,Y,Z. But if one of your Filament profiles due to whatever reason gets D,E,F, Z in it then no matter how you edit Z under your Printer profile it can use the Z that is mistakenly in the Filament profile. As the GUI doesn't let you edit Z under the filament profile its 'stuck' that way. Any time you slice with that profile the rogue settings are used.
The trick is to look through all the profiles and spot the bad ones and then remove the erroneous section. It's why the usual recourse is to uninstall, then manually delete the config folder (as uninstall does not remove that) so that when re-installed you get a 'clean' install. Thats last resort though.
RE: My print bed is not cooling after print
4 Attempts to post blocked by "WordFence". This time I'm leaving the .ZIP file off just to see if this can get through.
RE: My print bed is not cooling after print
Sigh. Stupid software won't let me post the .zip file.
Here's a link to it.
https://drive.google.com/file/d/1NNe8QA_rIqJgR_zS8-eMp3dRk_PCcTPG/view?usp=drive_link
RE: My print bed is not cooling after print
I am having the same issue although I do not use a prusa printer, I have a Neptune 3 max and a Neptune 4 pro which both leave the hotbed on after a print. Only difference is that in my case there is no timeout, it stays hot till i turn it off.
I looked at the config file and saw the M104 code there but my question is this.... all codes have a lower case 'n' before them as in "nM104 So ;turn off hotend".
Does the 'n' block commends? or is it something else.