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Extruder/nozzle keeps clogging up
I have an Adventurer 3 printer from Flashforge and every time I unclog it, it gets clogged up again. I’ve done about 6 or 7 prints with it. So after I unclog it, I load the filament and it comes out of the nozzle like it should but once I start a 3D print, it’s clogged again. The process of what I do to unclog it is by heating the nozzle up and then shove a small metal rod down the nozzle to push out the clogged filament. I do this several times until its all gone. I’ve read up on what I can do to prevent it but it doesn’t seem to work. What should I do?
I can see from the photo that filament melted and frozen thicker inside extruder. This is the problem and not the clogged extruder. This thick part produce a lot of friction and actually diameter grow until the print finally will stuck. Basically I had the same problem and I could guess that you are also using Bowden setup. The length of this built thicker part is actually corresponded to your retraction length set

I can see from the photo that filament melted and frozen thicker inside extruder. This is the problem and not the clogged extruder. This thick part produce a lot of friction and actually diameter grow until the print finally will stuck. Basically I had the same problem and I could guess that you are also using Bowden setup. The length of this built thicker part is actually corresponded to your retraction length setting in your slicer (the default value in Cura is unreasonable big like several centimetres). I solved the same problem by decreasing retraction settings to about 2mm3mm. Just try it and I am sure you will not have this problem again.
20181023 15:07:38 
The Flashforge documentation is not much help, so unless there's a way for you to connect with their user community (because, maybe what you're dealing with is a known issue related to firmware or the machine itself) or Flashforge's customer service folks, you've got some fun detective work ahead of you. Seriouslyyou will enjoy solving this!
So: It will help to teach yourself the ABC's of clog symptoms, so you can see what the cause(s) could and couldn't be, in your situation. This is not a bad starter guide, and there are lots of others. You say you've "read up" on preventive measuresthat's great! When your original post says, "but it doesn’t seem to work," please understand, though, that we who read don't yet know what "it" means, in this case. Clarity & details are you friends here.
20181023 15:13:07