Blocked Extruder
When heated the hot end is extremely hot - take extra care when
loading filament to prevent contact and avoid serious burns.
From time to time your extruder may become blocked, and you will need to strip down
your extruder to clear filament from the unit. This process can also be used to clean
the drive gear to achieve optimum results.
Begin by un-clipping the cooling fan from the heat sink, then carefully
remove the 4 screws holding the extruder cover plate in place
Remove the cover plate to expose the inner workings of the extruder,
be careful not to misplace the small bearing housed within the cover-
plate.
You can now remove the tension release arm,by sliding it towards
you, taking care not to loose the nut, bolt and spring that set your
feed roller tension
With the tension arm removed you can now remove the heatsink,
guide tube and hot end from the extruder assembly by sliding
carefully towards you.
Be extremely careful if the hot end is still
warm.
Take note of the orientation of the guide tube - it must be
replaced the same way it came off!
You can now unscrew the heak sink from the hot end, be careful not
to loose the PTFE tube contained within, this will reveal any blocked
filament.
You may need to heat the hot end in order to release the filament - if
required this must be done with extreme caution.
Reverse these instructions to rebuild your extruder.
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Excellence in Additive Manufacture
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