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Linear advance, extruder very noisy
Posted: Sun Nov 17, 2019 7:13 am
by DzzD
Hello, I would like to know if is that normal that the extruder make a lot of noise when Linear Advance is enabled?
PS: I am using TMC2208 on extrudeur
Re: Linear advance, extruder very noisy
Posted: Mon Nov 18, 2019 9:33 am
by William
Hi, You can provide a specific video.
So that we can solve the problem better.
Re: Linear advance, extruder very noisy
Posted: Tue Nov 19, 2019 2:04 am
by DzzD
Hi, You can provide a specific video
Ok I will do that, but for now I have another problem more important. I notice that retractation seems to be a lot slower than my slicer setting 30mm/s, when I look to the extruder while printing it look more like 15 or 10 mm/s, any idea ? (Marlin 2.0)
Re: Linear advance, extruder very noisy
Posted: Tue Nov 19, 2019 3:52 am
by DzzD
thanks ! It is probably related even If I use software retract and not G10/G11.
Re: Linear advance, extruder very noisy
Posted: Tue Nov 19, 2019 6:09 am
by DzzD
It is ok !
At first I tried your latest Geeetech Marlin 2.0 release but unfortunatly it was not working better, then I realised that your latest build did not contains the modifications in planner.cpp, so I've integrated the modifications from here (
https://github.com/MarlinFirmware/Marli ... 1ec2e75228) and now retraction is as fast as it should.
Re: Linear advance, extruder very noisy
Posted: Tue Nov 19, 2019 6:24 am
by DzzD
Also Linear Advance is no more noisy, don't know if it come from the latest "vert" Marlin 2.0 Geeetech release or from the patch in planner.cpp, but now it work silently
Re: Linear advance, extruder very noisy
Posted: Wed Nov 20, 2019 2:05 am
by DzzD
Another day, another problem : now one extruder stops extruding (I mean the stepper motor stop moving) with some models, and usually on first layer but it print well others biggers model, any idea ?
Re: Linear advance, extruder very noisy
Posted: Wed Nov 20, 2019 5:44 am
by DzzD
It stop at first layer, so very very small, but I can print a 30x30x30 cube without problem, also the extruders stepper drivers are both cold, wich is normal as they stop at start print, it extrude about 50mm and stop for some models, I will try your last build (does it include Mix extruder speed retraction patch ?)
Re: Linear advance, extruder very noisy
Posted: Wed Nov 20, 2019 6:03 am
by DzzD
Same problem with last build :/
Side note : LCD info screen (first screen) is buggy on latest build
Re: Linear advance, extruder very noisy
Posted: Wed Nov 20, 2019 6:31 am
by DzzD
vert wrote: Wed Nov 20, 2019 6:09 am
the forum is not the ideal place for discussion the server is very slow and the posting limits prevent discussion suggest using my discord.
https://discord.gg/brq79WQ
Ok I will do that next time, I dont know Discord it will be interresting to discover.
Last post for tonight but important for user facing the same issue : I tried disabling Linear Advance and it works ! (Setting it to 0 does not work, I have disabled it in Configuration_adv.h)