Horrible 2nd layer and onwards on larger prints | 3D Printing | Page 1

sleek dune Aug 5, 2024, 12:25 AM

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I'm having a nightmare with large prints. After the first layer everything looks shit. The nozzle is dragging on the filament and it's bunching up but I don't know why when the first layer looks fine. Please can someone help as I just want to print stuff and this is making me go insane.

round templeBOT Aug 5, 2024, 12:25 AM

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sleek dune I'm having a nightmare with large prints. After the first layer everything looks...

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AI Help

It sounds like you may be experiencing issues with bed leveling or improper adhesion to the bed causing your print to fail after the first layer. Make sure your bed is leveled correctly and the nozzle is at the right distance from the bed for proper adhesion. Additionally, check your print settings such as temperature, speed, and retraction to ensure they are appropriate for your filament and model. If the issue persists, consider calibrating your extruder steps/mm. Good luck troubleshooting!

sleek dune Aug 5, 2024, 12:26 AM

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Sovol SV06 running klipper
Overture PETG at 250, 240 and 230
Bed at 80
Prusaslicer

sterile tapir Aug 5, 2024, 1:11 AM

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sleek dune I'm having a nightmare with large prints. After the first layer everything looks...

what's your flow at?

sleek dune Aug 5, 2024, 1:13 AM

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I think I have it set to 15mm/s

sterile tapir Aug 5, 2024, 1:14 AM

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no, i meant extrusion multiplier

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also, in those pictures, which are your most recent print? because on some pic, the z offset seems fine, but on others, it looks too high

sleek dune Aug 5, 2024, 1:26 AM

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These three were my most recent prints. I raised it slightly since I was getting issues with the filament

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How can I find the extrusion multiplier please?

sterile tapir Aug 5, 2024, 1:27 AM

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Did you level the bed before printing?

sterile tapir Aug 5, 2024, 1:28 AM

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sleek dune How can I find the extrusion multiplier please?

It's in the filaments tab in prusa slicer

sleek dune Aug 5, 2024, 1:28 AM

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Yeh I have adaptive setup in my gcode and adjusted the silicone spacers last night

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Extrusion multiplier is set to 1

sterile tapir Aug 5, 2024, 1:29 AM

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sleek dune These three were my most recent prints. I raised it slightly since I was gettin...

The first picture's z offset looks good, and the 2nd and 3rd image's z offset looks too high

sterile tapir Aug 5, 2024, 1:29 AM

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sleek dune Yeh I have adaptive setup in my gcode and adjusted the silicone spacers last nig...

Can u send the bed mesh?

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Since you're running klipper

sleek dune Aug 5, 2024, 1:30 AM

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Those images are from the same print. the mid section is supports

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My bed is quite warped

sterile tapir Aug 5, 2024, 1:30 AM

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That's still fine tho

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.14 range is pretty good

sleek dune Aug 5, 2024, 1:31 AM

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Ok that's good to hear

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I just dried the PETG for 10 hours as well i think so it's as dry as it will get

sterile tapir Aug 5, 2024, 1:33 AM

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What's ur bottom shell layer set to?

sleek dune Aug 5, 2024, 1:34 AM

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sorry which settings are those?

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sterile tapir Aug 5, 2024, 1:35 AM

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Wait nvm, can u just send the gcode or stl

sleek dune Aug 5, 2024, 1:36 AM

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so i'm trying to print these two together so i can connect a bowden tube from my drier to my printer

📎 SV06_Reverse_Bowden_Cage.stl 📎 bowden_mount_M6.stl

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i have been trying to print gridfinity bases too but those are just not working with the issue i have right now

sterile tapir Aug 5, 2024, 1:40 AM

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is that the stl for #1269813514021634079 message

sleek dune Aug 5, 2024, 1:40 AM

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yes it is, the large print is rotated to fit diagonally and the smaller one to the side

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sterile tapir Aug 5, 2024, 1:43 AM

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send screenshot of sliced preview

sleek dune Aug 5, 2024, 1:43 AM

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sterile tapir Aug 5, 2024, 1:44 AM

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ah, those are brims

sleek dune Aug 5, 2024, 1:44 AM

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yes sorry

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do you think it's worth trying to turn down the max print and volumetric speeds and see if that helps?

sterile tapir Aug 5, 2024, 1:45 AM

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whats ur print speed

sleek dune Aug 5, 2024, 1:45 AM

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those are currently 300mm/s and 15mm3/s

sterile tapir Aug 5, 2024, 1:45 AM

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yeaah, i dont think stock sv06 is hitting that

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turn down the max flow rate to 13mm/s or even lower

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or even try 10, see if thats the issue

sleek dune Aug 5, 2024, 1:46 AM

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ok i've gone down to 150 and 10

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starting the print now and see how it goes

sterile tapir Aug 5, 2024, 1:47 AM

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have you tuned e steps?

sleek dune Aug 5, 2024, 1:47 AM

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i haven't no, not really sure how to do it to be honest

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i've not tuned pressure advance either

sterile tapir Aug 5, 2024, 1:48 AM

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?ellis

round templeBOT Aug 5, 2024, 1:48 AM

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https://ellis3dp.com/Print-Tuning-Guide/

Ellis’ Print Tuning Guide

Welcome!

Ellis’ Print Tuning Guide

sterile tapir Aug 5, 2024, 1:48 AM

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might be a good idea to go through this 👆

sleek dune Aug 5, 2024, 1:49 AM

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ok will do, i might not be able to get back to this for a few days since i'm away from tomorrow after work

sterile tapir Aug 5, 2024, 1:49 AM

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no worries

sleek dune Aug 5, 2024, 1:50 AM

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i just find it weird that the issue is new and i've been getting half decent prints until now

sterile tapir Aug 5, 2024, 1:51 AM

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might be a partial clog? try a cold pull if reducing speed doesnt work

sleek dune Aug 5, 2024, 1:51 AM

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i'll have a look as i just put this CHT nozzle on 2 days ago

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i had the same issues with the standard 0.4mm brass nozzle

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First layer going down

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sterile tapir Aug 5, 2024, 2:03 AM

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Looking good so far

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Btw what r those little black dots?

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Is that just just how the filament is?

sleek dune Aug 5, 2024, 2:04 AM

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yeh sorry it's a speckled white PETG filament

sterile tapir Aug 5, 2024, 2:04 AM

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Ah I see

sleek dune Aug 5, 2024, 2:05 AM

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nop good

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petg is building up on the nozzle and clumping on the print

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it only happens once it speeds up

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rn_image_picker_lib_temp_1d644685-21ab-4f54-aa8f-08cc42208871.jpg

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maybe i should turn the temp down if it's building up on the nozzle? i'm at 235 right now

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235 1st layer and 225 2nd layer

sterile tapir Aug 5, 2024, 2:08 AM

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You can try, but I would increase it instead

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Try 250

sleek dune Aug 5, 2024, 2:08 AM

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ok i went from 240 to 250 and now back down hoping that would help

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i'll slice at 250 and set it off

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260 1st layer and then 250 after?

sterile tapir Aug 5, 2024, 2:09 AM

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Also you can change the STL to something simpler like a cube, so it doesn't waste as much filaments

sterile tapir Aug 5, 2024, 2:10 AM

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sleek dune 260 1st layer and then 250 after?

Sure

sleek dune Aug 5, 2024, 2:13 AM

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ok starting that now

sleek dune Aug 5, 2024, 2:13 AM

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sterile tapir Also you can change the STL to something simpler like a cube, so it doesn't wast...

sorry just saw this

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will change it now

sterile tapir Aug 5, 2024, 2:14 AM

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And also maybe try cold pull

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?coldpull

round templeBOT Aug 5, 2024, 2:14 AM

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https://youtu.be/MGt8cnVIKW8

YouTube

3D Printing Nerd

3D Printing 101: How To Fix a Clogged Nozzle Using a Cold Pull!

Clearing a jam in the nozzle can be an easy fix. Using nylon filament and a few minutes of your time, you can clear the debris within your nozzle that causes inconsistent extrusions and failed prints!

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sleek dune Aug 5, 2024, 2:14 AM

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i did a smaller temp tower because i thought maybe it was the temps and that was going well until it got to 235 and the tower came loose from the bed

round templeBOT Aug 5, 2024, 4:15 AM

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sleek dune Aug 5, 2024, 9:58 AM

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I've just noticed that the hotend is slightly bent. Not sure how but could this be what's affecting my prints?

rn_image_picker_lib_temp_fd3c6d5e-370a-4a31-bf3a-adfc58ea8171.jpg

stray wedge Aug 5, 2024, 10:24 AM

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sleek dune

If thats your first layer, your z offset is wrong

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And yes, get your nozzle pointed straight. Like this, the edge of the nozzle orifice can scrape along the previous layer

sleek dune Aug 5, 2024, 10:36 AM

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stray wedge If thats your first layer, your z offset is wrong

it feels like i'm always setting my z offset, is this normal with inductive sensors?

sleek dune Aug 5, 2024, 10:36 AM

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stray wedge And yes, get your nozzle pointed straight. Like this, the edge of the nozzle ori...

i'm looking at buying a new one to replace this

stray wedge Aug 5, 2024, 10:38 AM

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sleek dune it feels like i'm always setting my z offset, is this normal with inductive sens...

yeah they can be a bit inaccurate with changing temps

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make sure you let the bed heat up a bit before probing

sleek dune Aug 5, 2024, 12:48 PM

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stray wedge make sure you let the bed heat up a bit before probing

i have it setup in my gcode that the heating is complete then it does the adaptive bed mesh

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i've just printed the part using marlin settings so 20-40mm/s and it's been fine

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1.5mm3/s flow

stray wedge Aug 5, 2024, 12:49 PM

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sleek dune i have it setup in my gcode that the heating is complete then it does the adapti...

yeah but its definitely not equalized once the bed thermistor reads the set temp

sleek dune Aug 5, 2024, 12:50 PM

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is swapping the inductive sensor to a BLtouch easy?

stray wedge Aug 5, 2024, 1:00 PM

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sleek dune is swapping the inductive sensor to a BLtouch easy?

you would need to change the firmware

round templeBOT Aug 5, 2024, 3:05 PM

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sleek dune Aug 7, 2024, 10:19 PM

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@stray wedge sorry i am back now to the printer after a couple days. before leaving i did two prints at super slow speeds and everything went the way i would expect. printed well and good quality. the changes were the speeds set to basically marlin settings in Orca slicer with the default profile and flow super low at 1.5mm3/s and then i swapped the CHT nozzle back to the brass nozzle after doing some cold pulls on it. for the interim i also bend the heatbreak back so the nozzle is straighter but i have a new one on the way so will swap that once it arrives. the profile was using standard PETG temps so 235°C and that seemed to work fine (minor stringing). it seems when i speed up the printer, it just doesn't like it so potentially it needs to be calibrated as the higher speed is highlighting some issues?

#Horrible 2nd layer and onwards on larger prints