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Elegoo Neptune Max 4: What should I attempt to fix it? (discuss.tchncs.de)
submitted 9 months ago by to c/3dprinting@lemmy.world
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Hi!

I'm hoping someone else has run into the same issue and can give me some hints what I might try to fix this.

My problem is that over time, the z-axis positioning of my relatively new Elegoo Neptune 4 Max seems to become slightly unstable. That is, after I level the bed and adjust the z-offset, everything looks fine. However, if I move up and down by a couple of centimeters for a few times, the z-offset is wrong again.

Due to this, I had to restart quite a few prints now, because wrong z-offset leads to a bad first layer.

Now I wonder what I should attempt first in order to fix this?

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[–] 3 points 9 months ago (4 children)

start by checking the coupling between Z-stepper and threaded rod, it may be slipping if it has become loose.

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  • [–] [S] 1 point 9 months ago (3 children)

    Thanks, gonna do that first before I start my next print. This sounds like a really plausible cause!

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  • [–] 2 points 9 months ago (2 children)

    Even if it feels tight, give the grub screws a tightening just for good measure, maybe some loctite if you have.

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