Need to be able to tune nozzle temperatures during print
I've noticed that the "Tune Menu" allows for modification of the individual temperature settings for the 5 tool heads. Unfortunately, this seems relatively useless as the setting will be overwritten as soon as the tool changes.
For example: I have a 2 color print in progress. I notice that the default setting of 210 degrees for Nozzle 1 seems to be too hot. I go to the Tune Menu, I select Nozzle 1 Temperature, and I reduce the temperature to 205. The nozzle temperature setting on Tool 1 drops to 205.
The print continues, and the printer switches to Tool Head #2.
After a bit, the printer switches again back to Tool Head #1. Unfortunately, the default temperature of 210 gets set again.
I mean, I can see WHY this happens: The GCODE for temperature setting probably gets resent every tool change. Unfortunately this makes the setting pretty meaningless on anything other than the first layer.
Am I missing something? Is there a way to tune the nozzle temperature during the print or do you have to abort and reslice?
RE: Need to be able to tune nozzle temperatures during print
I think this might be helpful: https://forum.prusa3d.com/forum/prusaslicer/change-filament-temp-at-color-change/
RE: Need to be able to tune nozzle temperatures during print
Thanks, but unless I'm reading it wrong (highly likely!), it looks like that only works for changing the temperature during slicing.
I'm looking at the tune menu on a Multi Tool head model. The tune settings do not "stick", since they seem to get over written on subsequent selection of that tool.
RE: Need to be able to tune nozzle temperatures during print
I noticed the same thing. I can tune the temperature of the active nozzle, but the moment it switches color the temperature is re-set back to the g-code value.
It seems that this feature does not work for multi-tool printers.
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Is Prusa working to change this? What is the point of this Tune if it doesnt work?
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I'm not sure you can fix it except for in the sliced file. It lowers extruder head temp when parked so the G-Code. When it needs that head again it's going to return to the temp setting you set in the slicer. It's literally hard coded in lines of the G-Code where the tool change is.
There is no fixing it while the print is running because it's just reading the G-Code. You can change the temp but when it comes to that line in the g code where it needs to heat back up it's going to read the temperature written on that line in the code.
This is no different than say for example manually changing the fan speed. If you manually changed the fan speed and your part has an overhang, the fan speed will get changed when it reaches that point in the g code for a overhang. Then it'll return to what your had set in the slicer again because it's written in the G-Code.
Another example is speed. If you have a speed change in the G-Code it doesn't matter what you tune it to on the printer itself. When it comes to the part in the g code where the speed change is it's going to change it.
Maybe Prusa has a way to retain it, but it'd have to ignore the g code somehow.
Look thru your g code at the section where there is a toolchange, you'll see it written there.
Keep in mind that the printer is somewhat dumb and is just reading your code, so if it's in the code it's going to do it. It's not actively making decisions.
RE: Need to be able to tune nozzle temperatures during print
In PrusaSlicer you can set the nozzle temperature to 0. This disables the temperature commands in the gcode so your manual adjustments are no longer overridden.
Do we need to set nozzle temperature to 0 (zero) for each extruder? Does this mean I need to manually set the initial temperature of all nozzles after the print 'starts'? I suppose this could be considered a workaround but probably more tedious than just restarting the print with a new temperature sliced! 😀
RE: Need to be able to tune nozzle temperatures during print
In PrusaSlicer you can set the nozzle temperature to 0. This disables the temperature commands in the gcode so your manual adjustments are no longer overridden.Do we need to set nozzle temperature to 0 (zero) for each extruder? Does this mean I need to manually set the initial temperature of all nozzles after the print 'starts'? I suppose this could be considered a workaround but probably more tedious than just restarting the print with a new temperature sliced! 😀
This would not work. It would reset the temp to 0 (zero) at each tool change, as it's set to that in the G code.
RE: Need to be able to tune nozzle temperatures during print
Then it'll return to what your had set in the slicer again because it's written in the G-Code.
This is an interesting point -- b/c in a single tool extruder, the overhangs must be coded as a 'delta' temp (or other variable) because I'm pretty sure you can tweak the temperature on a single extruder print and it will 'stick' even after overhangs and other 'different temp' regions are printed.
RE: Need to be able to tune nozzle temperatures during print
Then it'll return to what your had set in the slicer again because it's written in the G-Code.
This is an interesting point -- b/c in a single tool extruder, the overhangs must be coded as a 'delta' temp (or other variable) because I'm pretty sure you can tweak the temperature on a single extruder print and it will 'stick' even after overhangs and other 'different temp' regions are printed.
Yes, because unless you've programmed a temp change in the slicer it would never change the temp again. The difference is that with the multi extruder machine the temp lowers by the value you set in the slicer when parked. This is it to help with oozing and the other issues that occur when filament sits in the nozzle at an elevated temp for a long time.
So in the G-Code you'll see where it lowers the extruder temp when parked. Then raises it again when it picks that tool effectively overriding your manual tuning change.
RE: Need to be able to tune nozzle temperatures during print
Then it'll return to what your had set in the slicer again because it's written in the G-Code.
This is an interesting point -- b/c in a single tool extruder, the overhangs must be coded as a 'delta' temp (or other variable) because I'm pretty sure you can tweak the temperature on a single extruder print and it will 'stick' even after overhangs and other 'different temp' regions are printed.
Yes, because unless you've programmed a temp change in the slicer it would never change the temp again. The difference is that with the multi extruder machine the temp lowers by the value you set in the slicer when parked. This is it to help with oozing and the other issues that occur when filament sits in the nozzle at an elevated temp for a long time.
So in the G-Code you'll see where it lowers the extruder temp when parked. Then raises it again when it picks that tool effectively overriding your manual tuning change.
Right. It would be great if the XL 'remembered' the overridden value per extruder and used that value instead. Essentially, as a user, I want my override settings to work similar to the single extruder.
RE: Need to be able to tune nozzle temperatures during print
c'est chiant si il faut dans slicer avoir des T° a 0° et ensuite réécrire sur la bécane
pourquoi il y a pas une fonction qui pourrait nous donner deux possibilités
1er >> valeur Gcode a 100%
2éme>> valeur Gcode +/->>% par outil
et cela serait un plus pour toutes les facteurs de travail par outil >>> F +/-% T° +/- %
car il ne faut pas oublier que l'on a 5 machines sur le même châssis et en plus 5 matières différentes
RE: Need to be able to tune nozzle temperatures during print
Liking this topic. Right now it is not doable to adjust the temperature during a dual tool print.
My nozzle temperature was to high. With every tool change nozzle temperature is reset to the sliced temperature setting.