Surface Flaw & Morphology Index
Explore verified forensic case entries covering mechanical, thermal, and volumetric deviations. Select any defect record to access diagnostic findings, sliced motion parameter adjustments, and mitigation workflows.
Ringing and Ghosting
Repetitive wave patterns mirroring sharp corners caused by resonance, belt tension imbalance, and rapid toolhead deceleration.
Stringing and Oozing
Fine polymer cobwebs across air-travel gaps resulting from high hotend thermal soak, wet filament, and under-tuned retraction distance.
Warping at the Base
Severe corner lift and dimensional bending caused by uneven thermal contraction, chamber drafts, and insufficient build plate adhesion.
Layer Shifting
Abrupt horizontal translation of upper geometry due to stepper motor stall, driver current cutoff, loose pulley grub screws, or nozzle collision.
Under-Extrusion Marks
Discontinuous line paths and weak inter-layer bonding stemming from partial nozzle clogging, low flow ratio, or extruder gear slippage.
Over-Extrusion Blobs
Rough pimpled surface walls and dimensional bloat caused by excessive extrusion multiplier calibration or mismatched filament diameter.
Z-Seam Alignment Issues
Uncontrolled vertical ridges or holes at layer starting nodes requiring wipe-on-loop, coasting, and strategic seam placement alignment.
Pillowing on Top Layers
Irregular bumps and open puncture voids on flat roof ceilings triggered by sparse infill grids and inadequate top solid shell layer counts.
Elephant Foot Effect
Outward lateral bulging at first layers caused by heavy nozzle z-offset compression and high thermal bed temperature preventing cure.