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Mar 2016

What do you mean by—“Just make sure you take everything off, leave just the brass extruder”?

It looks as if a nut is holding the brass extruder to the print head. And there are two red wires and two black wires on the nozzle.

Thanks for getting back to me.

Jay, Thanks for getting back to me.

I have cleaned the gears with the brush. very little debris.on the gears

Pat

Yes, you have to disconnect the hot end (two fat red wires) I belive you’ll need an Allan wrench for that. Then there’s a thermostat that has two small wires, be careful not to yank those out, but that’s held by a small flat head screw and some high temp silicone (you’ll need to buy some high temp silicone when putting everything back, I user Gasket Maker from Autozone)

Yes the brass extruder is held by a nut, you’ll need two wrenches, one to hold the extruder near the head and one to loosen the nut. You want just the brass piece, you won’t be able to pull the thermostat out without separating the aluminum assembly from the extruder head.

Something also to do when you are cleaning the gear, make sure you rotate the gear and interface wheel next to it. I clean both, rotate a little and clean again until both the Brass gear and wheel are cleaned.

-Jay

23 days later

The filament was backed up into the aluminum shaft. I finally got the filament out of the shaft and hot end. Now that I removed the hot end and put everything back, the filament will not go thru the to the extruder. I can push thru a wire to the hotend. It seems that there might be an alignment. Thanks for your help so far, Pat

2 years later

this worked for me, I took off print cartridge, and got a good look at the drive gear and lo and behold, clogged with palstic all the way around it.

1 year later

I had this same issue I had to remove the carriage the hotend sits in then i could see the stuck filament sticking out the hole where the filament goes in the hotend. I was able to pull it out with needle nose pliers. Unfortunately it happened again a few days ago when the filament broke. This time it was not sticking out far enough to grab it. I can see the piece of filament but can’t remove it or heat the hotend up far enough to melt it out. My hotend cleaners got thrown away by mistake.