Answered Hex Hot End Clog & Grinding?

Hello,

I have been printing in both ABS & PLA using an oiler.

My last few prints have come out "Light & Stringy".

I had questioned if the print head was clogged, so I took it apart.

First Question: How do I unclog this? (First Picture)

Second Question: Is that grinding on the head normal!? (second pic)




Any help is appreciated!

Thanks,

Rian

 

Have you tried just increasing the temp and clearing the nozzle like that? Can't see your images on my computer, so I'm going off what has worked for me in the past to unjam my printer head.

 

Hello,

Yes I have tried unclogging with higher temps with both PLA and ABS.

 

Is the hobbed bolt grinding everything up or is it just not coming out of the nozzle?

 

It seems to grind some, but a small amount of filament can still get through when I push it by hand.

 

Undo the two screws, then clean the hobbed bolt. After cleaning be sure to tighten them and make sure the bearing opposite of the hobbed bolt is spinning as well. If all of that is well increase the temp, the teeth should move the filament never grind it.

 

That's not grinding on the hexend. That is threading from the bolts that holds the hot end. When you tighten the bolts holding the hotend it's threading the hotend as shown in your 2nd picture.

 

Oh is that what the picture looks like! Wish the images would load at my job...

 

It would have came from the factory like that. This is the first time I've taken it apart on account I got the printer about 5 days ago.

Could that Grinding be a problem for printing?

 

If it's threading around the cylinder where the bolts go, no. That's how the printer holds the extruder.

If it's jammed in the heat sink then you could get either disassemble the extruder further, or use a piece of metal same diameter, and push the excess filament out after heating it (take caution with the second choice)

 

Thanks guys!

Have been using an oiler with both PLA and ABS since I got my printer.

I will clean in and around the hobbed bolt.

Purchased an E3d V6 about a week ago so I may just put that in to see if it's more consistent.

Thank again,

Rian

 

How much grease if any should be on the hobbed bolt?

I am guessing there is some canola oil also on it.

 

Great, Thanks Mark!