Increasing hotend temp prior to unloading extruder filament
 
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Increasing hotend temp prior to unloading extruder filament  

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Traltixx
(@traltixx)
Active Member
Increasing hotend temp prior to unloading extruder filament

G'day,

I wanted to check here before trying some custom G-code.

Problem: With my MMU2S, when unloading filament from the extruder the filament needs to be 5C-10C higher than the print temp.

Does this solution make sense? In Filament tab go to Custom G-Code and in End G-Code add in a temp setting? Example "M109 S225;"

I hadn't seen anything else online covering this or examples. I have been going into the sliced model and changing the last layer with custom g-code, but I would like a simpler method.

 

Thanks for any help!

 

~Tral

Posted : 16/12/2022 4:25 am
Traltixx
(@traltixx)
Active Member
Topic starter answered:
RE: Increasing hotend temp prior to unloading extruder filament

Update: It worked as expected. I'm doing this with an MMU that has different brands of PETG and each has a different temp to form a tip during cooling moves.

Posted : 27/12/2022 8:59 pm
coolgrey5
(@coolgrey5)
Active Member
RE: Increasing hotend temp prior to unloading extruder filament

If it helps I had the same problem and ended up using this:

M104 S{temperature[current_extruder]+10}

With this I can use the filament in any of the MMU paths and if I need to change the main temperature it will still add 10deg at the end for unloading 👍 

Posted : 02/02/2023 10:24 am
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