Hi Dureiken,   As the guys before me stated follow those steps first!   Regarding PETG we experienced that the following settings worked best for us:   Print Temp. 250 Bed Temp. 85 Retraction Distance 10mm Retraction Speed 35mm/s   Also did we experience a lot of problems with printing infill patterns at a speed > 60mm/s To be safe I would recommend to print infill at a speed of 40mm/s max   Hope this gives you a good start
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