Troubleshooting

Symptom-first fixes for warping, layer shifts, under-extrusion, clogs and the rest. Each guide lists the causes in the order to check them.

Illustration: a row of four small printed test parts, each with a different subtle defect, a stringy one, a warped one, a layered one and a blobby one, with one orange part

Troubleshooting

3D Printer Problems and Fixes: A Troubleshooting Guide

A symptom-first guide to common 3D printer problems: what causes them and what to try first, based on manufacturer troubleshooting documentation.

10 October 2026 · 7 min read

Illustration of a brass-coloured printer nozzle with a plug of orange filament jammed at the tip and thin orange wisps escaping

Troubleshooting

How to Clean a 3D Printer Nozzle and Fix a Clog

How to spot a clogged nozzle and clear it, from a hot push and needle clean to a cold pull, plus prevention tips. Steps follow Prusa's documentation.

10 October 2026 · 7 min read

Illustration of a 3D printer nozzle with orange filament strands stretched between two small grey towers above a print base

Troubleshooting

How to Stop PETG Stringing

PETG is prone to stringing. Fix it in this order: dry the spool, lower the nozzle temperature, tune retraction, shorten travel moves, then check cooling and the nozzle.

10 October 2026 · 4 min read

Illustration of a flat grey print on a printer bed with one corner curling upward, showing an orange layer along the lifted edge

Troubleshooting

How to Fix Warping in 3D Prints

Warping is plastic shrinking as it cools and pulling corners off the bed. Fix adhesion first, then control temperature swings, cooling, speed and brim.

10 October 2026 · 5 min read