After two months printing with my j head lite v2,

3D Printing
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1

After two months printing with my j head lite v2, it is harder to extrude due to this. Is it a jam?

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2

I’m not sure what you’re trying to show in the video, but difficulty extruding can be caused by a clog or partial-clog in your hot end nozzle.

If you extrude into free air, does the extruded plastic go straight down, or does it bend to one side first? If it bends, or you can’t extrude at all (even when pushing by hand), try a cold pull.

The method is described here: http://bukobot.com/nozzle-cleaning

3

Could have just been a photo

4

filament go straight and after a few mm, it goes back, altought the extruder is pushing

5

It sounds like you may have a small piece of debris clogging your nozzle. When you stop extruding, it shifts upward in the molten plastic, and then when you start extruding again it gets shoved into the nozzle and causes a clog.

Try doing a cold pull, like it’s described in the link I posted before, but do it the first time with the filament that’s already in the hot end. Let it get up to temperature, sit there for about a minute, then proceed to let the filament cool and do the cold pull. That should (hopefully) get whatever the bit of debris is.

Then, just to be sure, do a couple more cold pulls with new filament to make sure the nozzle is totally clear inside. With a little luck, that should fix it.

6

I have never heard about that. I think that I have done it without knowing it hhahahaha Thank you!!