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[Cerrado] Linear Advance  

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ntdesign
(@ntdesign)
Reputable Member
Linear Advance

Hi all,
I've read very little here about the "experimental linear advance" option, but feel ready to embark on the next adventure.
I have fixed my MMU now and think it works as intended. My problems were a combination of damaged/poor tolerance heatbreak and friction in the MUX. After installing Seths printed variant and getting a new heatbreak from PR the very first print was a success using default settings (but PLA temps reduced 5°). The machine is reliable (24/7 MM printing for a week with nice results) and I my extruder/filament/extrusion width are dialed in perfectly. Overall print quality is definitely not worse than before the upgrade, maybe even slightly better.
Can I expect to flip on LA and get nice prints?
Is anyone using it successfully?
I noticed the preset says K=100 but in the gcode K=200, why?

Cheers,
Nils

Respondido : 26/01/2018 9:14 am
DevDoc
(@devdoc)
Estimable Member
Re: Linear Advance

I am using linear advance with the MMU and have had zero difficulties yet (2 weeks). I think you should be ok. As for the disparity, I don't know personally. I saw the K200 in the filament section for anywhere the MMU was used. I didn't change any of that and stuck with what was in the latest default package.

Respondido : 26/01/2018 6:54 pm
AJS
 AJS
(@ajs)
Noble Member
Re: Linear Advance

Linear advance works well, and you can push up your printing speed. K=200 is correct for MMU. Not sure where you saw 100?

Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…

Respondido : 27/01/2018 5:39 pm
ntdesign
(@ntdesign)
Reputable Member
Topic starter answered:
Re: Linear Advance

Ah, it says 100mms in the profile and that's the default infill speed. Got that mixed up.
EDIT: It works very well indeed. For my test model, 100mm/sec were a bit optimistic. With 80mm/sec the results were comparable with the non-LA profile but a noticeably faster. No stringing or drip problems at all, no blockage.

Respondido : 28/01/2018 6:17 pm
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