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With my Sovol SV08 I have printed PLA and PETG from SUNLU, TecBears and eSUN without any problems so far (approx. 582 hours). Unfortunately not so with the filament from GratKit.
When using GratKit PETG I always have to increase the z-offset from at least 0.010 to 0.040 depending on the model, so that the expression fits somewhat.
If I then load filaments from other manufacturers again (PLA, PETG), I have to reset the z-offset again.

I started with the following settings (Orca Slicer):
Recommend Nozzle temp: min 220° max 240°
Print temp: Nozzle: First Layer 240°, Others 220°
Bed temp: First Layer 65°, others 75°.
But that didn't work at all (e.g. layer didn't stick, nozzle blob etc.).

It currently works best with the preinstalled "Sovol SV08 PETG" settings (Orca):
Recommend Nozzle temp: min 230° Max. 280°
Print Temp: Nozzle: First Layer 255° Others 235°
Bed temp.: First Layer 75°, others 75°

So why I have to increase the z-offset when I use Filaments from GratKit?

    8 days later

    Faolan
    Thank you for your inquiry and verification.
    I think I can answer your question. The main reason for this problem is the melting rate of the filament.
    The reason why you need to increase the offset of Z offset. Because our filament has made some compatibility improvements for high-speed printers. In the same situation, our filament melting rate is higher than the standard filament. This also means that you need to reduce the flow rate in the slicing parameters. We recommend that the flow rate setting is 90%. Maybe you can try it.

    In addition, your slicing settings.
    We recommend that you control the temperature of the nozzle at 230C and the hot bed at 80C. The 65C for hot bed is not a good idea. PETG usually need 75C to get good adhesion to stick the bed.

    What surprised me a little is that you set the temperature of the first layer higher than that of other layers.
    But according to normal logic, the printing speed of the first layer is much lower than that of other layers, so you should lower the temperature of the first layer and increase the temperature of other layers.
    Similarly, in the last layer, you should lower the temperature to prevent the filament from overheating and ruining the beautiful structure of the surface of your print.

    For example, the first layer is 220C, and the other layers are 230C. This is our usual practice and conforms to normal printing rules.

    Maybe you have found some interesting rules, you can also share and put forward different ideas.

        7 days later

        william Did you read my post?
        I did all the calibration steps (temptower, flow, pressure, retraction) etc. for each filament (eSUN, sunlu, polymaker and FomFutura, PLA, PLA light, PLA meta, PETG) - and it works: once I set the z-offset, it works for all filaments. except GratKit PETG...

        But, what else. My conclution: won't buy again.

            8 days later

            Faolan
            I read your post, what advice would you like to get if you were using the wrong parameter settings to begin with?
            Feel free to google for slicing settings in terms of nozzle temperature.
            If you check it again, you'll notice that the ground floor is generally cooler than the other floors.
            For example, the default parameters of the Prusa slicer.
            It is true that the first layer prints much slower than the other layers, so you should lower the temperature of the first layer.

            Also, from your pictures. It can confirm my points, so why not have a try first?

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