#Polylite ASA Weird Underextrusion

49 messages · Page 1 of 1 (latest)

manic hull
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My ASA prints are fine in the beginning but after like 20 layers some walls start underextruding. I tried drying the filament, disabling retraction, decreasing PA, increasing/calibrating flow and increasing Temps to 270(both of which helped a tiny bit). I disassembled the toolhead and redid it. I thought that maybe the extruder is overheating and that's why the issue isn't apparent in the beginning, but the issue is non existent with eSun ABS+. Got ant ideas? Reckon I might try switching to a normal nozzle from a cht and adjusting the extruder current. What do you recommend?

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heady depot
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@manic hull is there a possibility that specifically pm asa is partially clogging?

manic hull
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After changing nozzle I may try printing slower too

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most of the prints were at ~200mm/s

heady depot
manic hull
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rapido hf with 0.4mm cht

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lgx lite

heady depot
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It may be that esun abs+ flows different from asa in such a way that it underextrudes

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try less flow

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I dont see why it would be that much

manic hull
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i will. Why is the issue not apparent in the first layers though?

heady depot
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first layer is slower

manic hull
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i am talking about the first 15 layers or so

heady depot
manic hull
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yes, 15 layers or so

heady depot
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what layer height are you using?

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that looks like 5 lol

manic hull
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0.2mm

heady depot
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can you measure it with calipers

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what slicer?

manic hull
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1.8mm

heady depot
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so 9 layers

manic hull
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super slicer

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you're right, yeah

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5 bottom layers btw

heady depot
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can you try doing a 10x10 cube for me please

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with the same settings

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same filament

manic hull
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I will get back to you when I work on my printer again. Tomorrow at best. Thanks for the help mate

heady depot
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No problem

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happy to help

manic hull
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@heady depot I decreased the print speeds (around 10 mm^3/s flow) and it started well but after 20 layers (actually this time haha) it started underextruding again. Then I changed nozzle but same thing happened. Extruder is hot to the touch, maybe I should lower the current?

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hm stealthchop was enabled for the extruder. Let's disable that...

manic hull
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Well, other than some z issues likely caused by slight warping it looks fine now. I increased the extruder current

heady depot
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which would make sense as to why the higher flow had it happen faster

manic hull
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Yeah but higher current fixed the issue

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At least for now

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Meh we'll see

heady depot
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higher?

manic hull
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Yes that's what's weird

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I tried lower current like a week ago and it was worse

heady depot
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thats strange

manic hull
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Indeed

heady depot
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you can skip from too low current, but it wouldnt be getting too hot

manic hull
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What's weird is that the issue is only with Polylite ASA

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I believe that I didn't figure out the problem, but rather found a way around it

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I'll print some stuff and see