#Can't for the life of me get my first layer right

1 messages · Page 1 of 1 (latest)

hot gazelle
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I'm struggling with getting my first layer right. Klipper, SV06 with a .6mm nozzle, trying .48 layer height. This is PETG at 240C and 80C.

It starts failing in spots, and those issues get amplified on further layers. I'm actively trying to use the menus in Klipper to fine-tune the z offset, but one of three things happens:
I get too close and these artifacts start happening everywhere.
I get too far and the lines don't stick together and it ends up failing
I think I get it dialed in just right and the picture happens.

First layer speed is 20mm/s and first layer infill is 35mm/s. Internal solid is also 35. Am I maybe printing too fast? I'm using OrcaSlicer so I'd imagine the flow rate+speed get tweaked if the slicer realizes it can't push that much filament (I forget what that's called, but PrusaSlicer does it, right?)

If anyone can tell me what I should be trying I would love some guidance. Because if I can get a print to stick, it prints wonderfully.

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cerulean furnaceBOT
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AI Help

It sounds like you're experiencing some challenges with getting the first layer right on your SV06 with Klipper. Here are a few suggestions to help troubleshoot the issue:

  1. Cleaning the print surface: Ensure that the print surface is clean and free of any debris or oils. Consider using isopropyl alcohol to wipe it down before starting a print.

  2. Adjusting the bed leveling: Double-check your bed leveling. Make sure it is properly leveled across the entire print bed. If your printer has manual bed leveling, try leveling it again to ensure the nozzle height is consistent across the bed.

  3. Z-offset adjustment: Since you are actively trying to fine-tune the z-offset, keep experimenting with small adjustments until you find the perfect distance. Use a calibration print or live-adjust Z-offset feature if available to optimize the first layer height.

  4. Print speed: It's possible that the first layer speed is too fast for your printer. Try reducing the first layer speed to 15-20mm/s...

WARNING: This response is AI generated and may contain errors.
hot gazelle
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I'll try slowing down the print speed. This is what I've got now. I'm giving it a go.

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rapid drum
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if its only failing in some spots that get amplified it might be that

hot gazelle
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So I've been doing some digging. My bed is as level as I can get it (screws_tilt_adjust gets me within 5 minutes/0.05 on each screw). bed is clean. So I slowed down the prints, which fixed it for the most part.

Still getting weird blobs in places, but it's not anywhere close to consistent. Found that it's actually oozing out the top of the nozzle, and I didn't notice because of the silicone cover. Not much, but enough that it makes the blobs on the left after printing all the stuff leading up to it. So I need to figure out how to stop the oozing from the nozzle. I'm assuming it's because it's not tight enough?

rapid drum
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yeah try tightening it

hot gazelle
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should i do this when it's hot or when it's cold?

rapid drum
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heat it up

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officially you have to heat it to 200c but I read somewhere 270c is better so thats what I do

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both should work

hot gazelle
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well isn't 270 bad cause the ptfe lining gets bad at 250?

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but I'll put it up to petg temps and see if i can fix this.

rapid drum
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no clue it worked for me, try 200c and tightening it

hot gazelle
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Thanks for all the help.

rapid drum
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if that fixes it problem solved

hot gazelle
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I'll mark this solved anyway because I think the speed is what was causing the initial issue.

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?solved