Shared GuidesPrint Defects & SolutionsPrint Defects & SolutionsDiagnose print problems by symptom – visible defects, filament and feeding issues, settings, and temperature – with a link to the fix for each.Common Print Defects Poor First LayerGaps, ripples, or weak adhesion in the first layerBridgingFilament sagging or drooping across gapsWarpingCorners or edges lifting off the build plateUnder-ExtrusionThin walls, gaps between lines, weak printsPoor Layer AdhesionParts delaminate or split between layersZ-Wobble / Z-BandingRepeating horizontal lines or patterns on sidesOver-ExtrusionBlobby, imprecise prints and oversized dimensionsElephant's FootFirst few layers bulge outward wider than the rest of the partDimensional AccuracyParts or holes do not match their intended dimensionsStringing and OozingFine plastic strands between parts of a printBlobs and ZitsSmall blobs of hardened plastic on the surfaceRinging and GhostingWavy echo patterns near corners and featuresRough Top SurfaceTop layer is rough, scarred, or pitted instead of smoothLayer ShiftingLayers suddenly offset sideways mid-print Filament & Feeding Issues Unclogging NozzlesClogged nozzle – no or intermittent extrusionCold PullClear clogs and clean the nozzle from the insideHotend Filament JammingHeat creep jams – print stops or under-extrudesFilament Breaks Inside TubeRigid filament snapping inside the PTFE tubesFilament Tube CompressingAccordion effect in the PTFE tube disrupts feedingNot Extruding at Start of PrintPrinter moves through the first layer but no filament comes outStops Extruding Mid-PrintExtrusion stops randomly partway through a printGrinding FilamentExtruder grinds or clicks instead of feeding filament Settings & Optimization Print SpeedsUnder-extrusion, layer shifting, ringing, or ghostingVolumetric Flow RateQuality degrades at higher speedsLayer Times & CoolingMelted features, poor adhesion, saggy overhangsLayer Height & Line WidthVisible layer lines, gaps, weak adhesionPressure AdvanceRounded corners, bulging seams Mechanical & Material Issues Part PlacementFailures in certain build plate areasInfill vs WallsUnexpected strength or print time issuesNozzle Material & SizeFrequent clogging or wearMaterial GuidesMaterial-specific chamber and bed temperature guidanceMotion System AdjustmentBinding or misalignment causing wall artifactsMaterial TuningCalibrate temperature and flow for a new material Temperature & Electrical Heater FaultsTemperature errors that interrupt printsPID TuningTemperature oscillation causing surface ripples