A:Thelayerthicknessistoobig;Orprintingspeedistoohigh(thenozzletemperatureneedstodoresponded
balancetohaveafasterprintingspeed);Orthetemperatureistoolow;
Or
Thewallthicknessistoothink;Or3Dmodelisnotcompletelyclosedsolid;Orthefeedingdevice’sfixing
screwistooloose;Orwrongchoiceoffilamentdiameter;Orfilamentqualityispoor;Orthefilamentgets
stuckandcouldnotbefedsmoothly.
Q:Modelhasflowline
A:Temperatureistoohigh;Orthefilamentiscarbonisedorliquefied(PLAwillgetliquefiedifover‐high
temperature,ABSwillgetcarbonizedifover‐hightemperature)