It's there a way to only heat the Extruders being used for the print?
 
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[Solved] It's there a way to only heat the Extruders being used for the print?  

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Brian
(@brian-12)
Estimable Member
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? 

Posted : 24/02/2024 3:47 pm
JC Custom Designs
(@jc-custom-designs)
Member
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.  

Posted : 05/03/2024 1:33 pm
Brian liked
BaconFase
(@baconfase)
Estimable Member
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.

 

.Printables.

MK3S MMU2S, XL-5T

Posted : 05/03/2024 10:23 pm
Brian
(@brian-12)
Estimable Member
Topic starter answered:
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.

Posted : 06/03/2024 4:12 am
Brian
(@brian-12)
Estimable Member
Topic starter answered:
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. 

Posted : 06/03/2024 4:18 am
Brian
(@brian-12)
Estimable Member
Topic starter answered:
RE: It's there a way to only heat the Extruders being used for the print?

Ok let's try this..... 

Posted : 06/03/2024 4:22 am
BaconFase
(@baconfase)
Estimable Member
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.

 

.Printables.

MK3S MMU2S, XL-5T

Posted : 07/03/2024 1:25 am
Brian
(@brian-12)
Estimable Member
Topic starter answered:
RE: It's there a way to only heat the Extruders being used for the print?

 

Posted by: @baconfase

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. 

 

Posted : 07/03/2024 1:37 am
Brian
(@brian-12)
Estimable Member
Topic starter answered:
RE: It's there a way to only heat the Extruders being used for the print?

 

Posted by: @baconfase

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. 

Posted : 07/03/2024 4:38 am
BaconFase liked
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