Match what you see
Use the search field or symptom families to identify the closest visible failure.
Find the right fix. Follow it clearly. Prove the result.
Search by the visible defect, printer family, material, slicer or setting. Every repair path starts with the safest high-probability checks and ends with a verification test.
Common symptoms:
168
guide paths visible
01I can see the defectMatch the closest visual symptom.
02I know the problem familyOpen the strongest fix category.
03I am not sure what failedUse guided diagnosis and evidence.
04I need settingsStart with printer and material context.
168 guidesFull public repair content
29 categoriesGrouped by failure type
Visual firstProblem and target comparisons
Safe orderOne controlled change at a time
Detailed visual-first guides
See the problem, repair order and target result before reading the full guide.
These premium guide maps demonstrate the consistent visual system being applied across the Hub: visible symptom, target result, ranked checks, success criteria and common causes.
Premium visual guide
Stringing and wisps
Drying, temperature, retraction and travel in the correct order.
Open visual guide →
Premium visual guide
Bad first layer and bed adhesion
Plate cleaning, leveling, Z offset and first-layer speed.
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Premium visual guide
Partial or clogged nozzle
Heat, clean, cold pull and test extrusion without guessing.
Open visual guide →3D printer troubleshooting explained clearly
Visual guides for first-layer problems, stringing, clogs, motion faults, supports, materials and slicer errors.
Use the library when a print is not sticking, stringing between features, shifting layers, under-extruding, warping, producing rough support surfaces or failing in the slicer. Each guide begins with a plain-language diagnosis and a visual comparison so visitors can confirm that they are solving the correct problem.
The repair steps are ranked from the safest and most likely check to more advanced adjustments. Printer, material and slicer context remains available in the full guide, while Quick Fix mode keeps the first checks and verification test easy to follow on a phone beside the printer.
Settings shown in STLBEAST guides are starting ranges rather than universal profiles. Make one controlled change at a time, test a small representative model and keep the adjustment only when the target result improves.
How to use the library
Start with the symptom, not a random setting.
Follow ranked checks
Work from the most likely, safest cause before changing slicer values.
Prove the fix
Run a small controlled test and keep only the change that improved the result.
Popular starting points
Get to the useful part faster
First layer
Print not sticking
Cleanliness, Z offset, plate temperature and first-layer flow.
Surface qualityStringing and oozing
Temperature, moisture, retraction and travel checks in safe order.
ExtrusionWeak flow and gaps
Clogs, feed resistance, temperature, speed and calibration.
SupportsSupports fused to print
Interface spacing, density, cooling and contact geometry.
No matching guide was found.
Try a shorter symptom, remove the printer model, or search the full Hub.
Open full searchBed Leveling & Probes
View category
4 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Bed Leveling & Probes
Auto Bed Leveling Probe Failure
Probe does not deploy or retract. Start by checking Dirty or damaged probe mechanism. Inspect probe mounting, deployment, wiring, nozzle cleanliness, bed surface,…
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Bed Leveling & Probes
BLTouch or CR Touch Deploy and Alarm Error
Probe flashes an alarm colour. Start by checking Bent or dirty pin. Clean the pin, verify free movement, inspect the mount and wiring, run the built-in self-test, and…
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Bed Leveling & Probes
Bed Mesh Not Applied or First Layer Ignores Leveling
A saved mesh exists but the first layer remains uneven. Start by checking Mesh not loaded. Confirm the mesh was saved, the correct profile is loaded after homing,…
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Bed Leveling & Probes
Warped Build Plate or Uneven Print Surface
Centre is high while edges are low. Start by checking Debris under removable plate. Separate removable-sheet, bed, magnet, mounting, and mesh errors; reseat…
Open repair pathCalibration
View category
17 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Calibration
Bed Leveling and Z Offset Guide
One side is always too close. Start by checking Mechanical gantry/bed misalignment. Level the machine mechanically first, probe or mesh the bed second, and tune Z…
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Calibration
Dimensional Accuracy and Fit Tolerance
Outer dimensions are close but holes are tight. Start by checking Over-extrusion or elephant foot. Calibrate flow and mechanics first, then use model-specific…
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Calibration
Flow Rate and Extrusion Multiplier Calibration
Walls measure too thick or thin. Start by checking Default profile not matched to filament. Calibrate flow only after the nozzle, filament path, temperature, and…
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Calibration
Pressure Advance / Linear Advance Tuning
Corners bulge at speed changes. Start by checking Pressure value not calibrated. Pressure advance compensates for changing nozzle pressure. Calibrate it after…
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Calibration
Temperature Tower Calibration Guide
One temperature produces stringing while another causes weak layers or poor detail. Start by checking Tower script not changing temperature. Start with verify…
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Calibration
Retraction Tower Calibration Guide
Stringing remains or the tower develops gaps and feeder damage. Start by checking Distance too low. Start with dry and tune temperature first, then test small…
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Calibration
Calibration Cube Measurement Guide
A cube is printed but measurements are interpreted without considering wall or shrink effects. Start by checking Flow error. Start with measure away from bottom…
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Calibration
Maximum Volumetric Flow Calibration
High-speed sections become matte, thin, or under-extruded. Start by checking Hotend melt capacity exceeded. Start with use a volumetric-flow test, then watch for…
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Calibration
Acceleration Tuning for Speed and Quality
Fast direction changes cause echoing, noise, or lost position. Start by checking Acceleration exceeds structure. Start with fix mechanics first, then test in…
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Calibration
Jerk and Junction-Deviation Tuning
Corners bulge, ring, or print with inconsistent speed transitions. Start by checking Value too high. Start with identify firmware model, then tune acceleration first.…
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Calibration
Part Cooling Fan Tuning
Overhangs droop, layers split, or small details melt depending on fan speed. Start by checking Cooling too low. Start with inspect duct direction, then use material…
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Calibration
Bridge Flow and Speed Tuning
Bridge lines droop, curl, snap, or leave gaps. Start by checking Bridge speed too slow. Start with use a bridge test, then tune cooling first. Confirm the result with…
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Calibration
Wall Thickness and Line Width Calibration
Measured walls do not match expected line count and line width. Start by checking Flow not calibrated. Start with use a simple wall test, then measure center…
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Calibration
Hole Size and Clearance Calibration
Pins fit outside dimensions but holes and sockets are too tight. Start by checking Hole shrink/line-center effect. Start with print a stepped hole gauge, then measure…
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Calibration
First-Layer Flow Calibration
The first layer is too sparse or overfilled despite a consistent nozzle gap. Start by checking Z offset still wrong. Start with calibrate z first, then reset extreme…
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Calibration
Extrusion Multiplier by Material
One material prints overfilled while another is weak using the same flow setting. Start by checking Filament diameter/chemistry differs. Start with verify hardware…
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Calibration
PID Tuning for Stable Hotend and Bed Temperature
Temperature overshoots the target. Start by checking Old calibration values. Run the printer manufacturer’s PID or heater calibration only after the heater, sensor,…
Open repair pathCooling & Fans
View category
2 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Cooling & Fans
Hotend Heatsink Fan Not Spinning
Fan is stopped while the hotend is hot. Start by checking Debris in fan. Stop long prints until the heatsink fan is restored; clean the fan, check its connector and…
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Cooling & Fans
Part Cooling Fan Not Spinning or Weak
Bridges and overhangs sag suddenly. Start by checking Slicer fan disabled. Check slicer fan commands, fan ducts, debris, connector, voltage, and fan direction before…
Open repair pathExtrusion
View category
17 repair paths
Clogs, weak flow, missing lines, clicking and filament-path resistance.
Extrusion
3D Printer Under-Extrusion
Thin or translucent walls. Start by checking Partial nozzle clog. Inspect the filament path and nozzle before increasing flow. Under-extrusion is usually a…
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Extrusion
Partial or Clogged Nozzle Fix
Purge strand curls sharply toward the nozzle. Start by checking Burned material or debris in nozzle. A partial clog often allows some extrusion but causes gaps and…
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Extrusion
Extruder Clicking or Grinding Filament
Repeated clicking from the extruder. Start by checking Nozzle restriction or low temperature. Clicking means the extruder cannot move filament at the requested rate.…
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Extrusion
Over-Extrusion, Blobs, and Zits
Walls look swollen or dimensions are oversized. Start by checking Flow/extrusion multiplier too high. Confirm filament diameter/nozzle/profile, then calibrate flow…
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Extrusion
Heat Creep Jam Fix
Print works for 20–90 minutes then starves. Start by checking Heatsink fan not running or obstructed. Heat creep softens filament above the intended melt zone.…
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Extrusion
Filament Will Not Load into the Extruder
Filament stops before the nozzle, bends at the feeder, or never reaches the hotend. Start by checking Cut end is blunt or bent. Start with cut a sharp angled tip,…
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Extrusion
Filament Stuck in a Bowden Tube
Filament cannot be pushed or pulled through the Bowden tube. Start by checking Swollen filament end. Start with cool and unload carefully, then release the coupler…
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Extrusion
Plastic Blob or Hotend Leak
A growing plastic mass forms around the heater block, nozzle, or heat break. Start by checking Nozzle not hot-tightened. Start with stop the print safely, then heat…
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Extrusion
Nozzle Scraping or Hitting the Print
The nozzle drags across infill, knocks the model, or leaves scratches on top surfaces. Start by checking Over-extrusion. Start with check for raised plastic, then…
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Extrusion
Inconsistent Extrusion During a Print
Line width changes unpredictably even though the profile remains constant. Start by checking Spool drag or tangles. Start with watch the spool path, then perform a…
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Extrusion
Sudden Under-Extrusion Mid-Print
A print starts normally, then develops thin lines, gaps, or missing layers. Start by checking Heat creep. Start with check heatsink fan airflow, then inspect spool…
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Extrusion
Extruder Motor Overheating
The extruder motor becomes unusually hot, softens filament nearby, or loses steps. Start by checking Excessive idler pressure. Start with check path resistance, then…
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Extrusion
Broken Filament Inside the Extruder
Filament snaps inside the feeder or cannot be unloaded normally. Start by checking Brittle or moisture-damaged filament. Start with release feeder tension, then…
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Extrusion
Cold Pull Nozzle Cleaning Guide
A partial clog remains after a normal purge and extrusion is inconsistent. Start by checking Burnt polymer residue. Start with use a compatible cleaning filament,…
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Extrusion
How to Change a 3D Printer Nozzle Safely
A worn, clogged, damaged, or different-size nozzle needs replacement. Start by checking Nozzle removed cold. Start with use the manufacturer procedure, then support…
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Extrusion
Hotend Temperature Fluctuation
The temperature graph oscillates, drops, overshoots, or triggers heater errors. Start by checking Loose thermistor or heater connection. Start with stop if heater…
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Extrusion
Filament Grinding at the Extruder
The drive gear chews a groove, creates dust, or stops advancing filament. Start by checking Nozzle restriction. Start with clear downstream restriction, then clean…
Open repair pathExtrusion & Feed Path
View category
2 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Extrusion & Feed Path
Bowden Coupler Slipping or PTFE Tube Pulling Out
PTFE tube moves during retractions. Start by checking Worn coupler teeth. Replace worn coupler teeth or damaged PTFE, fully seat the tube against the internal stop,…
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Extrusion & Feed Path
Extruder Tension Too Tight or Too Loose
Filament slips and the gear spins. Start by checking Tension too low. Set enough idler pressure to feed consistently without crushing, flattening, or grinding the…
Open repair pathFiles & Connectivity
View category
2 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Files & Connectivity
SD Card or G-code Read Error
File does not appear in the printer menu. Start by checking Failing or counterfeit card. Use a small, reliable card formatted as the printer expects, export fresh…
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Files & Connectivity
USB Print Disconnects and Host Communication Failures
Print stops when the computer sleeps. Start by checking Poor USB cable. Use a short shielded data cable, disable computer sleep and USB power saving, isolate…
Open repair pathFirst Layer
View category
15 repair paths
Adhesion, Z offset, bed mesh, plate condition and first-layer flow.
First Layer
3D Print Not Sticking to the Bed
Fix loose first layers and lifting corners by checking plate cleanliness, Z offset, bed temperature and first-layer flow.
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First Layer
Nozzle Too Close to the Bed
Nozzle scrapes or clicks over the plate. Start by checking Z offset too low. Raise Z offset slightly until extrusion becomes continuous and neighboring lines merge…
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First Layer
Nozzle Too Far from the Bed
Correct round, separated first-layer lines by lowering Z offset carefully and confirming bed mesh and flow.
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First Layer
3D Print Warping and Corner Lifting
Corners curl upward. Start by checking Weak first-layer bond. Warping is controlled by a strong first layer plus even thermal conditions. Fix surface, Z offset, and…
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First Layer
Elephant Foot Fix
Bottom edge flares outward. Start by checking Nozzle too close. Fix Z offset and bed temperature first, then use first-layer compensation or a small model chamfer for…
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First Layer
Wavy or Rippling First-Layer Lines
First-layer lines snake, ripple, or change width as the nozzle moves. Start by checking Z offset slightly too low. Start with raise z offset in tiny steps, then clean…
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First Layer
Gaps Between First-Layer Lines
Separate lines leave the build surface visible between passes. Start by checking Z offset too high. Start with lower z offset slightly, then return first-layer flow…
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First Layer
First-Layer Ridges and Excess Overlap
Raised seams form between lines and the nozzle may drag through them. Start by checking Z offset too low. Start with raise z offset gradually, then reset first-layer…
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First Layer
Bubbles or Blisters in the First Layer
Small bubbles, raised patches, or blister-like areas appear during the first layer. Start by checking Dirty build surface. Start with wash the build surface, then…
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First Layer
Smooth PEI Adhesion Guide
Prints either release too early or bond so strongly that the surface is at risk. Start by checking Surface contamination. Start with clean with the approved method,…
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First Layer
Textured PEI Adhesion Guide
Small parts or corners detach despite a visibly textured plate. Start by checking Powder-coat contamination. Start with deep-clean the plate, then lower z offset…
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First Layer
Glass Bed Adhesion Troubleshooting
Prints slide, lift, or bond unevenly on a glass build surface. Start by checking Invisible residue. Start with degrease the glass, then check temperature across the…
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First Layer
Brim vs Raft: Which Adhesion Aid to Use
Tall, narrow, warped, or low-contact parts need more bed support. Start by checking Contact area too small. Start with try a brim first, then round or add mouse ears…
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First Layer
Large Flat Prints: Corners Lifting
Large flat models curl upward at corners while the center remains attached. Start by checking Thermal contraction. Start with shield the printer from drafts, then add…
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First Layer
First-Layer Speed and Temperature Tuning
The line drags, curls, fails to bond, or looks overheated despite correct Z offset. Start by checking Speed too high. Start with reduce first-layer speed, then test a…
Open repair pathFunctional Parts
View category
4 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Functional Parts
Heat-Set Inserts for 3D Printed Parts
Insert spins in the hole. Start by checking Pilot hole wrong size. Design the correct pilot hole and surrounding wall, use a temperature-controlled insertion tool,…
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Functional Parts
Snap-Fit Joints Too Tight or Too Loose
Snap will not engage. Start by checking Clearance not calibrated. Calibrate printer dimensions, material flex, clearance, layer orientation, and hook geometry using a…
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Functional Parts
Print-in-Place Hinges or Moving Parts Fused
Hinge cannot move after printing. Start by checking Clearance too small. Fix first-layer squish, flow, seam blobs, clearance, support intrusion, and cooling, then…
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Functional Parts
Watertight 3D Print Leaks
Water seeps through layer lines. Start by checking Insufficient wall or bottom thickness. Increase continuous walls and bottom layers, correct under-extrusion and…
Open repair pathHardware & Safety
View category
5 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Hardware & Safety
Thermal Runaway Error: Stop, Diagnose, and Repair Safely
A thermal runaway, heating failed, or heater decoupled warning appears. Start by checking Loose or damaged thermistor. Stop the machine, disconnect power after it…
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Hardware & Safety
Hotend Not Heating or Heating Too Slowly
The hotend remains near room temperature. Start by checking Loose heater connection. Verify the heater cartridge, thermistor reading, connectors, power supply, hotend…
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Hardware & Safety
Heated Bed Not Heating or Heating Unevenly
Bed temperature stays near room temperature. Start by checking Bed cable fatigue. Inspect the bed cable, connector, heater, thermistor, power delivery, mounting, and…
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Hardware & Safety
Thermistor Error and Jumping Temperature Readings
Temperature jumps tens of degrees instantly. Start by checking Broken thermistor lead. Treat sudden temperature jumps as a sensor or wiring fault: stop heating,…
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Hardware & Safety
3D Printer Restarts or Powers Off Mid-Print
The printer reboots without a normal stop message. Start by checking Power supply or mains interruption. Check power input, supply voltage, loose connectors,…
Open repair pathHardware & Sensors
View category
1 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Hotend & Nozzle
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1 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Maintenance
View category
1 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Material Settings
View category
4 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Material Settings
PLA Settings Guide
Poor adhesion. Start by checking Profile not matched to printer/hotend. Start from the printer and filament manufacturer profiles, then tune first layer, temperature,…
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Material Settings
PETG Settings Guide
Heavy stringing. Start by checking Wet filament. Use a dry spool, less first-layer squish than PLA, conservative retraction, and the lowest temperature that still…
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Material Settings
TPU Flexible Filament Settings Guide
Filament buckles near extruder. Start by checking Speed too high. Print TPU slowly through a constrained low-friction path, keep retraction conservative, and dry the…
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Material Settings
ABS and ASA Warping Settings Guide
Corners lift despite a good first layer. Start by checking Drafts and unstable chamber temperature. Use a suitable enclosed printer, stable thermal conditions,…
Open repair pathMaterials
View category
14 repair paths
Moisture, drying, temperature, storage and material-specific behaviour.
Materials
Wet Filament Symptoms and Drying
Popping, hissing, or steam at nozzle. Start by checking Open storage in humid air. Compare against a known-dry sample and follow the filament manufacturer’s drying…
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Materials
Silk PLA Settings and Troubleshooting
Silk PLA looks dull, strings, clogs, or splits despite using a PLA profile. Start by checking Temperature too low for additives. Start with dry if needed, then tune…
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Materials
PLA+ Settings and Differences from PLA
PLA+ prints stringy, soft, brittle, or dimensionally different from standard PLA. Start by checking Blend chemistry differs by brand. Start with use manufacturer…
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Materials
Nylon Printing Guide
Nylon strings, warps, bubbles, or produces weak rough layers. Start by checking Moisture absorption. Start with dry thoroughly, then verify printer temperature…
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Materials
Polycarbonate Printing Guide
Polycarbonate warps, cracks, or will not bond despite high nozzle temperature. Start by checking Printer temperature capability insufficient. Start with confirm…
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Materials
Carbon-Fiber Filament Printing Guide
Filled filament clogs, wears the nozzle, or produces weak matte surfaces. Start by checking Standard brass nozzle wear. Start with use a hardened nozzle, then choose…
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Materials
Wood Filament Clogging and Surface Tuning
Wood-filled filament clogs, burns, or produces inconsistent color and texture. Start by checking Nozzle too small. Start with use a larger nozzle, then avoid long…
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Materials
Glow-in-the-Dark Filament and Nozzle Wear
Flow and dimensions degrade after printing abrasive glow filament. Start by checking Abrasive phosphor particles. Start with use wear-resistant nozzle, then measure…
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Materials
Flexible Filament Buckling in the Extruder
Flexible filament bends, coils, or escapes beside the drive gear. Start by checking Gap after drive gear. Start with inspect drive-to-tube gap, then slow feed speed.…
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Materials
Filament Storage and Humidity Control
Previously good filament becomes brittle, stringy, bubbly, or inconsistent in storage. Start by checking Open-air storage. Start with use sealed containers, then…
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Materials
How to Dry Filament Safely
Filament pops, bubbles, strings, or prints with rough weak surfaces. Start by checking Temperature too low. Start with identify the exact material, then use…
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Materials
Brittle Filament That Snaps
Filament breaks on the spool, at the extruder, or after sitting loaded. Start by checking Material moisture or hydrolysis. Start with test a fresh spool section, then…
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Materials
Filament Diameter Variation and Flow Errors
Flow, dimensions, or surface finish vary across one spool. Start by checking Diameter out of tolerance. Start with measure several locations and angles, then confirm…
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Materials
3D Prints for Outdoor UV and Heat Exposure
PLA softens or deforms outdoors. Start by checking Material glass-transition too low. Choose a material rated for UV and service temperature, print for layer…
Open repair pathModel Repair
View category
2 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Model Repair
STL Not Slicing or Missing Layers
Part of the model disappears after slicing. Start by checking Non-manifold or self-intersecting mesh. Inspect the slicer preview for non-manifold geometry, inverted…
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Model Repair
Non-Manifold STL Repair Guide
Slicer reports non-manifold edges. Start by checking Open boundaries. Repair topology in a copy of the model, then verify the sliced result layer by layer. A…
Open repair pathMotion
View category
1 repair paths
Layer shifts, wobble, banding, skipped movement and mechanical alignment.
Motion & Mechanics
View category
13 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Motion & Mechanics
Loose Belt Symptoms and Adjustment
Layers shift, circles look flat, corners ring, or belts visibly flutter. Start by checking Belt tension too low. Start with check pulley set screws, then inspect belt…
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Motion & Mechanics
V-Wheel Adjustment: Too Tight or Too Loose
The carriage wobbles, wheels spin freely without contact, or motion feels notchy. Start by checking Eccentric nut too loose. Start with check carriage play, then…
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Motion & Mechanics
Gantry Not Level or Sagging
Nozzle height differs left to right or the gantry drops when motors are off. Start by checking Dual-Z sides out of sync. Start with power off and compare both sides,…
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Motion & Mechanics
Z-Axis Binding and Sticking
Z movement squeaks, stalls, changes pitch, or shows repeating layer artifacts. Start by checking Misaligned lead screw. Start with move z through full travel, then…
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Motion & Mechanics
Lead Screw Wobble and Z Artifacts
Repeating bands appear at a pitch related to the lead screw rotation. Start by checking Bent lead screw. Start with observe the screw while moving z, then check…
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Motion & Mechanics
Print Bed Wobble and Loose Carriage
The bed rocks when touched or changes position during acceleration. Start by checking Loose V-wheels or linear bearings. Start with check play with power off, then…
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Motion & Mechanics
Noisy Stepper Motor or Harsh Motion
A motor buzzes, chatters, squeals, or sounds rough during movement. Start by checking Mechanical binding. Start with move the axis by hand when safe, then check…
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Motion & Mechanics
Skipped Steps and Lost Position
The print suddenly offsets, homes incorrectly, or an axis chatters without moving. Start by checking Collision or obstruction. Start with inspect the full travel…
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Motion & Mechanics
3D Printer Frame Squareness Check
Axes are not perpendicular, dimensions differ by direction, or gantry travel twists. Start by checking Loose frame fasteners. Start with place the printer on a stable…
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Motion & Mechanics
Input Shaping Basics for Cleaner Corners
Echo lines appear after corners even though belts and frame are secure. Start by checking Resonance frequency not measured. Start with fix mechanical play first, then…
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Motion & Mechanics
CoreXY Belt Tension and Balance
Diagonal artifacts, skew, noise, or unequal belt tones appear on a CoreXY printer. Start by checking Unequal belt tension. Start with verify routing against official…
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Motion & Mechanics
Delta Printer Calibration and Geometry
Nozzle height or dimensions vary by position on a delta printer. Start by checking Tower/endstop offsets incorrect. Start with check joints and towers, then equalize…
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Motion & Mechanics
Stepper Motor Buzzing but Axis Does Not Move
Motor vibrates or buzzes in place. Start by checking Mechanical jam or binding. Power down, remove mechanical load, inspect belts, lead screws, connectors, motor…
Open repair pathMulti-Material
View category
4 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Multi-Material
AMS or Multi-Spool Filament Feed Failure
Filament repeatedly loads and unloads. Start by checking Spool resistance or poor winding. Trace the complete feed path, remove spool resistance and broken filament,…
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Multi-Material
MMU Load or Unload Failure
Repeated load retries occur. Start by checking Poor filament tip shape. Align the selector and filament tips, reduce path friction, calibrate sensor positions, clean…
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Multi-Material
Colour Contamination Between Multi-Colour Filaments
Previous colour appears in the next colour. Start by checking Insufficient purge volume. Increase purge only where needed, use suitable transition order, clean the…
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Multi-Material
Purge Tower Falling Over or Failing
Tower detaches while the model remains attached. Start by checking Poor tower adhesion. Improve the tower’s first layer, width, cooling, speed, and placement, then…
Open repair pathPlanning
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1 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Post-Processing
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4 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Post-Processing
How to Remove Supports Without Damaging the Print
Supports leave chips, white stress marks, or broken details. Start by checking Removal while part is hot. Let the part cool, use the right cutters and direction,…
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Post-Processing
Sanding and Finishing 3D Prints
Layer lines remain visible after coarse sanding. Start by checking Skipping grit stages. Start with safe support cleanup, use progressive grits, keep heat and dust…
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Post-Processing
Priming and Painting 3D Prints
Paint beads or peels. Start by checking Oil, dust, or release residue. Clean, dry, sand, and test the part; apply thin compatible primer coats, inspect defects, sand…
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Post-Processing
Gluing Multi-Part 3D Prints
Seams open after assembly. Start by checking Poor fit or warped mating surfaces. Dry-fit and align parts first, prepare clean mating surfaces, choose an adhesive…
Open repair pathPrint Quality
View category
4 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Print Quality
Ringing and Ghosting Fix
Repeated ripples after sharp corners. Start by checking Loose frame, belts, wheels, or toolhead. Check mechanical rigidity first, then reduce acceleration/outer-wall…
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Print Quality
Z-Banding and Repeating Layer Lines
Bands repeat at a regular vertical interval. Start by checking Bent, constrained, or dirty lead screw. Repeating bands at regular intervals usually point to Z…
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Print Quality
Top Layer Gaps and Pillowing
Small holes between top lines. Start by checking Too little top thickness. Increase effective top thickness and support it with adequate infill, cooling, and flow; do…
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Print Quality
Spaghetti Print Failure and Mid-Print Detachment
Loose filament accumulates around the nozzle or model. Start by checking Part detached from the build plate. Stop the print safely, identify whether the part…
Open repair pathResin Printing
View category
16 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Resin Printing
Resin Print Not Sticking to the Build Plate
The raft remains in the vat or only part of the model attaches to the plate. Start by checking Build plate not leveled. Start with re-level the plate, then clean it…
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Resin Printing
Resin Supports Failing or Detaching
Supports print but the model separates, deforms, or leaves islands in the vat. Start by checking Tips too small or sparse. Start with inspect every island, then…
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Resin Printing
Resin Layer Separation and Cracks
Horizontal cracks, split walls, or separated layers appear in the print. Start by checking Exposure too low. Start with warm resin to approved range, then verify…
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Resin Printing
Resin Print Warping and Distortion
Flat surfaces bow, corners lift, or parts twist during printing or curing. Start by checking Large flat cross-section. Start with angle large surfaces, then…
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Resin Printing
Resin Elephant Foot Compensation
Bottom edges flare outward and holes near the plate close up. Start by checking Bottom exposure too high. Start with use a raft/support when appropriate, then reduce…
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Resin Printing
Resin Drain Holes and Suction Cups
Hollow prints crack, deform, leak resin, or pull hard from the film. Start by checking Closed cavity creates suction. Start with inspect hollow preview, then place…
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Resin Printing
Resin Islands and Unsupported Pixels
Small fragments or missing features appear because new layers begin in mid-air. Start by checking Automatic supports missed an island. Start with use island…
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Resin Printing
Resin Exposure Calibration
Fine holes close, details blur, or supports fail depending on exposure. Start by checking Exposure too high. Start with stabilize resin temperature, then use a…
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Resin Printing
Resin Lift Speed and Distance Tuning
Layers detach, supports bend, or the film snaps loudly during lift. Start by checking Lift speed too high. Start with listen for peel behavior, then use printer/resin…
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Resin Printing
Resin Temperature and Cold-Weather Failures
Cold resin prints weakly, supports fail, and layers show inconsistent cure. Start by checking Resin too cold. Start with measure actual resin temperature, then warm…
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Resin Printing
Cloudy, Chalky, or White Resin Prints
The cured surface becomes cloudy, chalky, or develops white marks. Start by checking Dirty wash solvent. Start with use clean wash stages, then dry completely before…
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Resin Printing
Resin Washing and Curing Workflow
Parts remain sticky, glossy, brittle, cracked, or coated with residue after post-processing. Start by checking Wash solvent saturated. Start with use staged clean…
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Resin Printing
Cloudy, Scratched, or Damaged Resin Release Film
Prints fail in the same vat area. Start by checking Normal wear and micro-scratching. Drain and filter the resin, clean the vat safely, inspect the release film under…
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Resin Printing
Resin Vat Leak: Containment and Recovery
Resin appears beneath the vat. Start by checking Punctured release film. Stop the printer, protect yourself, contain uncured resin, remove the vat without spreading…
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Resin Printing
Resin Printer LCD Screen Failure or Dead Pixels
Whole screen does not expose. Start by checking Failed LCD panel. Run the manufacturer exposure test with the vat removed, inspect the screen and cable, separate…
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Resin Printing
Resin Build Plate Leveling and Zero Setup
One side of the raft sticks and the other does not. Start by checking Plate not parallel to screen. Clean the plate and screen area, loosen the plate as specified,…
Open repair pathSlicer & STL Repair
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4 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Slicer & STL Repair
Cura Support Settings Guide
Tune support angle, interface density, Z distance, pattern, cooling and removal strength in Cura.
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Slicer & STL Repair
OrcaSlicer Support Settings Guide
Supports miss islands, fuse, or create rough surfaces. Start by checking Support threshold too permissive. Start with use layer preview, then inspect every island.…
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Slicer & STL Repair
PrusaSlicer Support Settings Guide
Supports use too much material, damage the surface, or fail to reach features. Start by checking Overhang threshold wrong. Start with inspect sliced layer view, then…
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Slicer & STL Repair
Bambu Studio Calibration Workflow
Flow, pressure advance, temperature, or speed are tuned out of sequence and results conflict. Start by checking Temperature not established first. Start with dry and…
Open repair pathSlicer Settings
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1 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Strength
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1 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Stringing
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2 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Stringing
How to Fix Stringing in 3D Prints
Stop fine hairs, webs and oozing by checking filament moisture, nozzle temperature, retraction and travel behavior.
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Stringing
PETG Stringing Fix
Dry the filament, verify temperature and then tune retraction and travel behavior without over-retracting PETG.
Open repair pathSupports
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4 repair paths
Support contact, interface quality, bridges, overhangs and underside finish.
Supports
Supports Hard to Remove
Reduce fused supports by tuning top Z distance, interface layers, density, cooling and contact geometry.
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Supports
Support Scars and Rough Undersides
Improve supported surfaces with interface spacing, support roof density, cooling, speed and orientation changes.
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Supports
Overhang Curling and Drooping
Overhang edge curls upward. Start by checking Insufficient cooling. Improve cooling, lower temperature, slow overhangs, and reduce layer height—then support or…
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Supports
Bridging and Sagging Fix
Bridge lines bow downward. Start by checking Bridge speed too slow or too fast. Bridges need controlled speed, cooling, temperature, and bridge flow. Tune with a…
Open repair pathSupports & Geometry
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10 repair paths
Ranked troubleshooting paths, controlled checks and verification steps.
Supports & Geometry
Tree Supports vs Normal Supports
A model needs support but the best structure type is unclear. Start by checking Organic surfaces. Start with inspect overhang shape, then choose support type by…
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Supports & Geometry
Support Interface Settings
Supported surfaces sag or supports fuse tightly to the model. Start by checking Interface density too low. Start with enable a defined interface, then tune interface…
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Supports & Geometry
Support Density Guide
Supports collapse, flex, or use excessive material. Start by checking Density too low. Start with inspect support height and span, then increase density only where…
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Supports & Geometry
Support Z Distance Tuning
Supports either weld to the part or leave a sagging rough underside. Start by checking Gap too small. Start with express the gap in layer increments, then test one…
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Supports & Geometry
Organic Supports Guide
Branches miss overhangs, wobble, merge into the model, or become impossible to remove. Start by checking Branch diameter too small. Start with reorient before adding…
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Supports & Geometry
Tiny Parts Breaking During Printing or Cleanup
Small fingers, horns, chains, or pins snap or fail to form. Start by checking Feature below practical nozzle width. Start with inspect minimum feature size, then…
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Supports & Geometry
Thin Walls Missing in the Slicer
Walls disappear in preview or print as intermittent fragments. Start by checking Wall thinner than line width. Start with inspect layer preview, then enable variable…
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Supports & Geometry
How to Split a Large Model for Printing
The model exceeds the build plate or would require excessive support as one piece. Start by checking Cut placed on visible detail. Start with choose hidden structural…
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Supports & Geometry
Why Printed Holes Are Too Small
Circular holes print undersized or require drilling despite correct outer dimensions. Start by checking Extrusion width intrudes inward. Start with measure a…
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Supports & Geometry
3D Printed Threads That Fit Reliably
Printed nuts, bolts, and threaded lids bind, wobble, or fuse together. Start by checking Clearance too small. Start with use printable thread profiles, then add…
Open repair pathSurface Quality
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12 repair paths
Stringing, seams, blobs, ringing, rough walls and top-surface defects.
Surface Quality
Z-Seam Placement and Visibility Fix
A vertical line of bumps, gaps, or scars appears on the outer wall. Start by checking Seam placement strategy. Start with choose a deliberate seam position, then tune…
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Surface Quality
Random Zits and Pockmarks on Walls
Small bumps or pits appear at scattered locations rather than one seam line. Start by checking Wet filament. Start with dry the filament, then disable optional…
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Surface Quality
Rough or Grainy Outer Walls
Outer walls look gritty, torn, or uneven despite correct model geometry. Start by checking Inconsistent extrusion. Start with inspect extrusion consistency, then…
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Surface Quality
Inconsistent Layer Lines
Some layers are wider, darker, or shifted while others look normal. Start by checking Extrusion variation. Start with check whether pattern repeats, then inspect z…
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Surface Quality
Gaps Around Holes and Circular Features
Thin gaps appear where walls meet around holes or curves. Start by checking Wall/infill overlap too low. Start with inspect sliced preview, then enable gap filling or…
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Surface Quality
Poor Small Details and Soft Features
Fine text, teeth, scales, or edges merge together or lose definition. Start by checking Nozzle/layer resolution too coarse. Start with use suitable nozzle/layer…
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Surface Quality
Drooping Small Features and Pointed Tips
Narrow towers, ears, horns, or tips bend and soften near the top. Start by checking Layer time too short. Start with increase minimum layer time, then improve part…
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Surface Quality
Unwanted Fuzzy or Hairy Surface
The wall has a deliberately or accidentally rough, fuzzy texture. Start by checking Fuzzy skin enabled. Start with check fuzzy-skin setting, then inspect for…
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Surface Quality
Glossy and Matte Bands on the Same Print
Alternating shiny and dull bands appear at different heights. Start by checking Speed changes by feature type. Start with compare slicer speed preview, then review…
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Surface Quality
Color Change and Purge Problems
New color mixes with the old, the restart is weak, or a blob forms at the change. Start by checking Insufficient purge. Start with purge until color is stable, then…
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Surface Quality
Scratches on Top Surfaces
Top layers show diagonal scratches, gouges, or shiny drag marks. Start by checking Travel crosses the top surface. Start with enable avoid-crossing where practical,…
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Surface Quality
Nozzle Drag Marks Between Features
Thin lines or smears connect separate features on the same layer. Start by checking Oozing during travel. Start with tune stringing first, then review travel preview.…
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