Fix the print, not just the symptom
Source-backed troubleshooting for stringing, warping, first-layer and adhesion problems — by material and machine, with every parameter linked to where it came from.
Material × failure matrix
Rows are filaments, columns are the failure a print actually shows. A filled cell opens the fix; an empty cell means no guide has been written yet.
| Material | First layer | Warping | Stringing | Over-extrusion | Drying |
|---|---|---|---|---|---|
| PLA3 fixes | Bed adhesion | Retraction | Flow rate | ||
| PETG4 fixes | Bed adhesion | Corner lift | Prusa MINI | ||
| ABS1 fixes | Enclosure | ||||
| ASA1 fixes | Enclosure | ||||
| TPU1 fixes | Flexible | ||||
| PA (Nylon)1 fixes | Moisture |
Start from your filament
Pick the spool on the machine. Each row lists what is known to go wrong with it and how many fixes are written.
All fixes
Every guide is scoped to one material and one machine family, and states the settings behind the fix.
TPU Stringing and Speed: Why Printing Too Fast Makes It Worse
Fix TPU stringing by slowing to the recommended 15–40 mm/s, keeping the nozzle at 210–250 °C, and setting the bed correctly, per Polymaker's TPU printing guide.PLAStringingPLA Stringing: Retraction and Temperature by the Numbers
Fix PLA stringing with the specific retraction distance, retraction speed and temperature values from Simplify3D's troubleshooting guide.PLAOver-extrusionPLA Over-Extrusion: Fix Bulging Layers with the Extrusion Multiplier
Fix PLA over-extrusion and bulging sides by calibrating the extrusion multiplier (typical for PLA: near 0.9) using Simplify3D's calibration method.PLAFirst layerPLA First Layer and Bed Temperature: 190–230 °C Nozzle, 40–60 °C Bed
Fix PLA bed adhesion and first-layer problems with Polymaker's recommended nozzle (190–230 °C) and bed (40–60 °C) temperatures, plus 100 % cooling for sharp details.PETGWarpingPETG Corner Lifting: A 70–85 °C Bed and First-Layer Settings That Keep Corners Flat
Stop PETG corner lifting with a 70–85 °C heated bed, 220–260 °C nozzle, a slow 20–30 mm/s first layer, and reduced drafts and cooling.PETGStringingPETG Stringing on the Prusa MINI: Bowden Retraction That Stops the Hairs
How to fix PETG stringing and oozing on the Original Prusa MINI and MINI+ using its Bowden retraction length, retraction speed and nozzle temperature.PETGStringingPETG Stringing on a Direct-Drive Printer: Keep Retraction at 2 mm or Less
Fix PETG stringing on direct-drive machines like the Prusa MK2.5 and MK3 by keeping retraction at 2 mm or less, retracting on layer change, and dropping nozzle temperature 5–10 °C.PETGFirst layerPETG First Layer and Bed Temperature: 240–260 °C Nozzle, 60–70 °C Bed
Get Polymaker™ PETG to stick and lay down a clean first layer using its recommended nozzle (240–260 °C), bed (60–70 °C) and cooling-fan (20–60 %) settings.PA (Nylon)DryingNylon (PA) Drying: 50–70 °C for 6–8 Hours, Then a 70–100 °C Bed and Enclosure
Dry nylon (PA) at 50–70 °C for 6–8 hours, print at 220–260 °C with a 70–100 °C bed, and use an enclosure to stop PA warping and moisture bubbles.ASAWarpingASA Warping: Bed 90–110 °C, Nozzle 240–280 °C, and a 60 °C Chamber
Fix ASA corner lifting and warping with Polymaker's recommended bed (90–110 °C), nozzle (240–280 °C, start at 250 °C), 60 °C chamber, and reduced part cooling.ABSWarpingABS Warping: Bed Temperature and Enclosure Settings That Stop Corner Lift
Stop ABS corner lifting and layer splitting with PolyLite™ ABS's recommended bed (90–100 °C) and nozzle (245–265 °C) temperatures, plus a warm, draft-free enclosure.Match the symptom
Find the material and failure you are seeing — stringing, warping, first-layer or adhesion — and open that guide.
Check the source
Every setting links to the manufacturer or knowledge-base page it comes from, so you can verify it yourself.
Change one thing at a time
Apply one fix, reprint a small test, and only then move to the next variable.