Common Issues

First Layer

Issue	Cause	Solution
Print not sticking to bed	Bed not clean	Clean bead
	Nozzle not clean	Clean nozzle
	Printing environment too cold (>15°C)	Use enclosure Turn on heater
	Low bed temperature	Check bed temperature Increase bed by 5°C
	PINDA probe knocked	Adjust PINDA probe
	Z height too high	First layer calibration Live Z adjust
Skirting on first layers Low extrusion Bubbling on first layer Nozzle gathering filament	Z height low	Clean nozzle First layer calibration Live Z adjust

Mid Print

Issue	Possible Cause	Solution
Excessive Stringing	High extruder temp	Check bed temperature Reduce extruder temp by 5°C
Large prints lifting	Bed not clean	Clean print bed
	Low bed temperature	Check bed temperature Increase temperature by 5°C
Layer shift	Print lifting off bed	Follow ‘Large prints lifting’
Not extruding	Incorrect filament type	Reslice model for correct filament Remove and reinsert filament
	Incorrect extruder tension	Check extruder tension Remove and reinsert filament
	Nozzle blocked	Clean Nozzle Remove and reinsert filament
PETG not shiny	Low extruder temp	Check extruder temp Increase temp by 5°C
	Old filament	Put in food dehydrator for 15min
Poor layer adhesion	Low extruder temp	Check printbed temp Increase temp by 5°C

Minimum Temperature Error

Minimum temperature error screen

Use curved attachment to heat extruder

The Prusa has a quality check which disables printing if the ambient temperature is >10°C. Low environment temperature results in faster cooling, in turn, causing layer separation or lifting. This can be fixed by moving the printer to a warmer environment or utilizing a printing enclosure. The printbed will produce enough heat to keep the enclosure at a reasonable temperature.

If this is not possible, one can trick the printer into turing on.

• Aim a heatgun at the printbed. Monitor the screen and remove the heat once the temperature has exceed 15°C

• Heat up the extruder. This is best done with the curved attachement. There are parts of the extruder that are made of PETG which will soften/melt with excessive heat so be careful.

• Once both extruder and heatbed are <15°C press the reset button

• Immediately start your print. If not ready to print, preheat the printer

• Consider raising the environment temperature by turning on a heater

https://3dprinterly.com/how-to-dry-filament-like-a-pro-pla-abs-petg-nylon-tpu/