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israel.n
(@israel-n)
Active Member
First layer problem

How to fix that problem?

The z offset it -0.885

Posted : 29/04/2018 6:00 am
Kwaad2
(@kwaad2)
Honorable Member
Re: First layer problem


The z offset it -0.885

It looks like your Live Z is too high... especially on the one side.

I'm gonna say two things. Do them in order. I'm not 100% sure if my "thought" is right.

Step 1.
"feel" to top surface where it's more "consistent". It should feel about the same, both "with" the extrusion, and "against" the extrusion, to your finger. (NOT YOUR FINGERNAIL)
If it feels very different, depending on the way you move your finger with, or against the extrusion, your Live Z is too high.

LOGIC TIME
Smooth ridges/valleys = Live Z is too high.
Smooth and flat = Live Z is just right
Rough like sandpaper = Live Z IS TOO LOW. DO NOT GO LOWER, GO UP.

Step 2.
Assuming my guess that your Live Z is too high, you should lower it I would guess right around 0.12mm. DO NOT DO IT ALL AT ONCE. I usually do it in 0.02mm increments. It's slow, but it protects your heat bed from stupid mistakes.

OTHER OPTION (longshot)

This could explain the differences between the two sides, but you definatly have a LiveZ issue first and foremost. (or bed leveling issue)

But you could also be suffering from a bed adhesion issue. I use Windex when printing with PLA. I find PLA sticks better to it, than just a "clean smooth PEI".

Hi, I'm Sean. I used to work on CNC machines.
I try to not make mistakes, but the decision is YOURS.
Please feel free to donate to my filament/maintance fund.

Posted : 29/04/2018 4:40 pm
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