Symptoms:

First layer doesn’t stick well

Filament detaches during printing

Common Causes:

Bed not properly leveled

Inadequate bed temperature

Dirty or worn bed surface

Incorrect Z-offset distance

Solutions:

Level bed using paper as a reference

Adjust bed temperature based on material

Clean the surface with isopropyl alcohol

Correct Z-offset in slicer or firmware

Symptoms:

Filament stops mid-print

Clicking sounds from extruder

Common Causes:

Poorly wound spool

Excessive extruder tension

Low-quality filament

Solutions:

Check proper spool mounting

Adjust extruder tension as per specs

Use high-quality filament (like GST 3D)

Symptoms:
Poor layer bondingFilament over- or under-melting
Solutions:
Adjust temperature according to material:

|Material  | Nozzle (°C) | Bed (°C) | Notes |

| PLA        | 190–210     | 50–60     | Fan at 100% |

| PETG      | 220–240     | 70–80     | Fan at 50% |

| ABS       | 230–250      | 90–110   | Requires enclosure |

| TPU       | 210–230      | 50–60     | Print slow (20–30 mm/s) |

Symptoms:
Lifted corners

Curved base

Common Causes:

Thermal contraction

Poor bed adhesion

Air drafts

Solutions:

Use heated bed appropriately

Apply adhesives (hairspray, tape, glue stick)

Enclose print area or avoid drafts

Add brim or raft in slicer

Symptoms:

No filament extrusion

Clicking from extruder

Common Causes:

Debris in the nozzle

Contaminated filament

Wrong temperature

Solutions:

Perform a cold pull

Replace nozzle if needed

Set correct nozzle temperature

Symptoms:

Fine threads between printed parts

Common Causes:

Nozzle temperature too high

Improper retraction settings

Solutions:

Tighten belts

Clean and lubricate rails and bearings

Reduce print speed

Symptoms:
Misaligned layers

Common Causes:
Loose belts

Dirty or dry axes

Too high print speed

Solutions:

Tighten belts

Clean and lubricate rails and bearings

Reduce print speed

Symptoms:
Gaps or missing material in layers

Thin or incomplete parts
Common Causes:
Partial nozzle clog

Inconsistent filament diameter

Incorrect flow rate settings
Solutions:
Clean or replace nozzle

Use quality filament with strict tolerances

Increase extrusion flow in slicer gradually

Symptoms:
Warped or melted upper layers

Loss of detail
Common Causes:
Too high nozzle temperature

Low print speed

Poor cooling
Solutions:
Lower nozzle temperature

Increase print speed

Improve cooling using fans or slicer settings

Symptoms:
Poor bridge and overhang quality
Common Causes:
Faulty or misplaced cooling fansInadequate slicer fan settings
Solutions:
Verify fan placement and functionOptimize cooling speed in slicer

• Always use dry filament
• Clean the nozzle and extruder regularly
• Use reliable slicers: Cura, PrusaSlicer, OrcaSlicer
• Save verified profiles from GST 3D
• Update firmware when needed