#Weird layer issues with KP3S

1 messages · Page 1 of 1 (latest)

broken sapphire
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I'm getting layers with inconsistent widths and thicknesses on my prints. It's not happening at consistent height intervals and the places that it happens aren't consistent between different models, but they are consistent between prints of the same model.

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I've tried mods to add belt tensioning to the y axis, a different z screw bracket, cleaning and lubing the z screw, replacing the thing that holds the screw in place, lubing the y and x linear rails, PID tuning (multiple times)

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I've also tried printing on different beds

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not much change in that regard

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I should also mention, I'm printing these with polylite natural ASA

raw flint
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have you done e-steps, flow and heat tower calibration for that filament?

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also are you printing ASA in an enclosure?

broken sapphire
broken sapphire
raw flint
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can you take a picture of the printer itself.. from all sides. id just like to take a look.

broken sapphire
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Running ABL rn but here's the front

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Alllright nevermind, I just got M112

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Wtf

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See what I mean with this printer constantly giving me issues?

raw flint
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you said you modded it.. what exactly did you mod?

broken sapphire
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I added a y axis belt tensioner

raw flint
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i see linear rails on x and y what happened to z?

broken sapphire
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and swapped out the fan

broken sapphire
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that's how it comes stock

raw flint
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with linear rails?

broken sapphire
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yes

raw flint
broken sapphire
broken sapphire
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the print issues don't seem to be only on the y axis though

raw flint
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i know. im just going through a checklist with you.

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anything that you might have forgotten could compound the issue.

broken sapphire
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right

raw flint
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the z-lead screw is straight right?

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you've checked that at least?

broken sapphire
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yeah it's about as straight as it can get

raw flint
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whats the coupler look like?

broken sapphire
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I considered that as a possible issue at one point but when I swapped the z screw bracket it made print quality way worse, besides that the screw hardly wobbled to begin with

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lemme send a pic of that real quick

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well, after ABL again

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got M112 because I accidentally adjusted it too much and had one corner of the bed below the range of the printer's allowed movement

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it's going good now tho

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cannot seem to balance this thing for the life of me though ffs

raw flint
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no worries. acutally i was thinking of removing the z-screw bracket at the top

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it might be acutally causing to much tension on the lead screw.

broken sapphire
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oh, there isn't one

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that's a camera mount

raw flint
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and at the top?

broken sapphire
raw flint
broken sapphire
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It didn't come with that

raw flint
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interesting..

broken sapphire
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that's just a separate accessory

raw flint
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the coupler in the picture did you replace that or is that the standard one?

broken sapphire
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that's the normal one

raw flint
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also where are you from? europe or states?

broken sapphire
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US

raw flint
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damn.

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try and find a flexible coupler. i think it might be slightly to stiff. and thats the reason you are getting those wierd lines.

broken sapphire
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I did try printing a replacement coupler

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I don't remember what happened when I used it but it wasn't an improvement

raw flint
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if you where in europe, you could have gotten this.. look at the pictures. and you will understand what i mean

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raw flint
broken sapphire
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oh nice I didn't know alignment balls were a thing

broken sapphire
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that's probably why the replacement z-screw bracket didn't work either lol

raw flint
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yeah i replaced all my couplers with those.

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if you can find something similar. i would suggest doing that.

broken sapphire
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I've seen a ton of flexible couplers but nothing with a ball

raw flint
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id grab one of those flexible couplers.

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just to see if that makes a difference..

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shouldnt be that expensive a few bucks.

broken sapphire
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there's a few options it seems

raw flint
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yeah, its kinda pick and choose lol.

broken sapphire
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which kind should I go for?

raw flint
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either or, i have both. the octagon are pretty much the same as the amazon link i sent. except with out the ball. which you could possibly find somewhere else later

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and the red ones i have as well. those are also very good.

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like i said. pick either or.

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then again. the octagon are on sale.

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why pay more.

broken sapphire
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part of me wants to get it off of aliexpress just cuz there's a few other things I wanna get from there as well but also idk if I wanna wait a few weeks to get it

raw flint
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might as well.

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grab the other things from there as well.

broken sapphire
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There's some parts to mod the printer to have linear z axis rails and a flashlight to mount on my eskate since I get out of my classes at like 7pm and it's starting to get dark then

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lemme see if I can find that mod rq

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here it is

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not sure if I wanna do this mod if I'm gonna save for a new printer anyways tho lol

raw flint
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yeah thats something i would have recommended.

broken sapphire
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man just the rails are like another $25 tho

raw flint
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lol. yeah.

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thats also the reason i said go for the coupler first.

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if that makes a difference you will at least know where the issue is.

broken sapphire
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right, right

raw flint
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and i recheck all the steps for x y and z

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use the same formula you use for e-steps. just make the motion move 100 mm

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anyways, do that. ill check with you tomorrow. im going to sleep.

broken sapphire
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oh jesus these all ship like dec 31, yeah I'll do amazon instead lol

broken sapphire
raw flint
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night.

broken sapphire
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oh sweet, I just got enough points on one of my data tracking rewards apps to get me $4 of any kinda gift card so I managed to get it on amazon for the same price I would've at ali lol

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(the app's name is Mobile Performance Meter if you're interested, shit is an actual godsend)

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it's like the exact type of shit people usually advertise as a scam but it's actually legit somehow

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only downside is that it has a bit of an affect on your battery life

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lemme see how much I've gotten from it

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since january, about $70

broken sapphire
# raw flint night.

Alright, just finished trying the coupler, it improved a tiny bit but it's still obvious

raw flint
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#3dprinting message

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check this out.. this was fascinating.

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and might be a partial reason for your layers.

broken sapphire
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interesting. I don't think I have the same problem as him, but based on his process of elimination, it does seems like an issue with my extruder

broken sapphire
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I'll try doing a vase cylinder to see if I get the same pattern as him though

broken sapphire
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Although, I do get spirals at the chimneys of my benchies...

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Maybe it is the same issue

broken sapphire
raw flint
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honestly. the good extruders are expensive. the question is if its worth it.

broken sapphire