19
Extruder Problems
1.
If filament is not exiting the extruder while printing or
manually extruding, you likely have a problem with the
extruder.
If the filament extrudes fine in air, but makes a clicking
sound when printing the first layer of a part, it is most likely
a bed leveling issue instead.
See the section on bed leveling
and calibration
2.
First, check that the nozzle is heating up. Set the
temperature within the Fablicator interface to 240
and see if it rises from room temperature.
If no change is seen on-screen, physically check to
see if the heater block is getting hot. Pressing a
piece of filament onto the side of the block is a good
way to tell.
3.
If the heater block is hot, but the software says it’s
cold, the PT100 temperature sensor is likely to
blame.
Check the PT100 connections at the extruder and
computer case. If the connections seem OK, replace
the PT100 sensor.
4.
If the heater block is still cold, the problem is likely
the heater cartridge or controller board.
Check the heater cartridge connections in the
extruder and at the case. If the connections look OK,
test the resistance of the heater cartridge and wires
leading to it.
A functioning cartridge should have a resistance of
~3.5 ohms.