It's there a way to only heat the Extruders being used for the print?
I notice that my XL always heats all extruders to the idle temperature for the entirety of the print even if only 1 or 2 extruders are being used.
It would make sense to me that it only heat the Extruders being used.
Does anyone know how to do this, or if it's something in the works?
RE: It's there a way to only heat the Extruders being used for the print?
This is definitely something that needs to be addressed. I have PLA loaded into every head and the ones that don't get used as often have absolutely cooked filament in the nozzle. When those are first used, it's like water coming out of the nozzle when it purges.
RE: It's there a way to only heat the Extruders being used for the print?
Do you have a problematic 3mf to share? I've had the issue of tool1 always getting heated for MBL even if not used. But I haven't come across all tools heating even when not used.
XL-5T, MK3S MMU3 || GUIDE: How to print with multiple-nozzlesizes do read updated replies || PrusaSlicer Fork with multi-nozzlesize freedom || How Feasible is Printing PETG for PLA supports on XL very
RE: It's there a way to only heat the Extruders being used for the print?
Here is a screenshot of a print running that only uses nozzle 3 and 5. I took this picture when Nozzle 5 was not needed anymore. Interesting to see it say only 70.
RE:
Here's a test part 3mf if that helps.
I guess I need to figure out how to attach a file. It's selecting it but not uploading.... Stand by.
RE: It's there a way to only heat the Extruders being used for the print?
Ok let's try this.....
RE: It's there a way to only heat the Extruders being used for the print?
Gave it a go and didn't get anything out of the norm. Only the two that were used were heated and T5 slowly went down to 70 when it was no longer needed. 70 is the idle temp set in Filament Settings.
XL-5T, MK3S MMU3 || GUIDE: How to print with multiple-nozzlesizes do read updated replies || PrusaSlicer Fork with multi-nozzlesize freedom || How Feasible is Printing PETG for PLA supports on XL very
RE: It's there a way to only heat the Extruders being used for the print?
Gave it a go and didn't get anything out of the norm. Only the two that were used were heated and T5 slowly went down to 70 when it was no longer needed. 70 is the idle temp set in Filament Settings.
So what's going on with my machine then? I'm doing another 16 hour print right now and when I go check the nozzle temps in the tune menu here's what I get. Is there a setting somewhere that needs changed?
Attached is also the 3mf.
RE: It's there a way to only heat the Extruders being used for the print?
Gave it a go and didn't get anything out of the norm. Only the two that were used were heated and T5 slowly went down to 70 when it was no longer needed. 70 is the idle temp set in Filament Settings.
I figured it out. If you use the preheat function it heats all the Nozzles. If you start a print after that there is nothing to turn the unused nozzles off.
So you need to manually turn them off if you use preheat.
Thanks for helping me discover the issue.
RE: It's there a way to only heat the Extruders being used for the print?
Definitely IS an issue though. We always use the Preheat function before a print because we manually purge each nozzle before the print (due to oozing etc reasons), so we then have to manually turn off each of the nozzles not in use. If it were easy to do so this wouldn't be a big deal but you have to use the rotary encoder to turn them off. These rotary encoders DO wear out, we've had to replace several on MK3s, so it would be nice to have a menu option to either select nozzles for preheat or easily turn them off.
RE: It's there a way to only heat the Extruders being used for the print?
I agree it could use some improvement. Maybe ask what nozzles to preheat, but then it's not much different than using the control menu to do it.
This leads to what I've actually been doing. I go to the control menu and temperature, then I set the temperature for the heatbed and whatever nozzles I'm going to use. It's a few more steps, but it works.
Hope this helps.
RE: It's there a way to only heat the Extruders being used for the print?
I think if I understand what you're doing you use the LCD control to dial up whatever nozzles to 210, or whatever, and the bed to 60 or so? Similar to what we tend to do which is to Preheat PLA (or whichever) and then dial down the nozzles we aren't going to use to OFF. It works. But would be much better to have a toggle. Even just in Prusa Connect under Control have a Preheat option with toggles for which nozzles. Can't currently do that I don't believe. Might be the easiest solution.