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  1. #1

    Filament jam that I cannot fix, help please!

    Sorry if this solution is posted somewhere, I am not sure what the part is called so I cannot search for this problem easily.

    I have a stubborn bit of filament stuck that I cannot seem to break free. It is a small bit of filament that is in the housing that exists between the nozzle and motor.


    I have a picture, which I cannot seem to attach, so you will have to go to this link:

    https://drive.google.com/open?id=0B_...XF4VzE0a1lKSkE

    The only thing I can think of is to remove the entire nozzle part. I have tried heating it to ush it through and it is just super stuck, it is too small to grab with pliers.

    Any idea what I should do? I have no clue how to remove the nozzle block.

    Also, what the heck is the name of that thing?

  2. #2
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    Quote Originally Posted by cmousseau View Post
    Sorry if this solution is posted somewhere, I am not sure what the part is called so I cannot search for this problem easily.

    I have a stubborn bit of filament stuck that I cannot seem to break free. It is a small bit of filament that is in the housing that exists between the nozzle and motor.


    I have a picture, which I cannot seem to attach, so you will have to go to this link:

    https://drive.google.com/open?id=0B_...XF4VzE0a1lKSkE

    The only thing I can think of is to remove the entire nozzle part. I have tried heating it to ush it through and it is just super stuck, it is too small to grab with pliers.

    Any idea what I should do? I have no clue how to remove the nozzle block.

    Also, what the heck is the name of that thing?
    I think the bottom part is usually called the heater block comprised of the nozzle, PTFE tube, Throat, thermocouple and heater cartridge.
    Here is a video showing nozzle replacement on a similarly designed printer. Sorry, but I don't know where one is for the FFCP.
    https://www.youtube.com/watch?v=0eR23r0zgkU
    Hope this is of some help.

  3. #3
    Staff Engineer printbus's Avatar
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    Quote Originally Posted by cmousseau View Post
    I have a picture, which I cannot seem to attach...
    Moderator comment: The problem may have been the image size. Like most forums, 3DPrintBoard won't accept the high-res image files typical from most digital cameras these days. Reducing the image to something like 800x600 pixels before uploading is usually a fair compromise. Where high resolution detail is necessary, hosting the image external to 3DPrintBoard is the way to go.

    EDIT: For uploaded images, 3DPrintBoard defaults to just providing a thumbnail size image that users click on to enlarge. That default can be over-ridden by double-clicking on the image after it is embedded into your edit post window, and then selecting the full-size option in the pop-up dialogue that appears.
    Last edited by printbus; 10-06-2016 at 11:25 AM.

  4. #4
    Engineer-in-Training iDig3Dprinting's Avatar
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    You have to remove the heat break from the heater block at the end. The hold it with a pair of pliers and heat up. If it is ABS you can immerse it in acetone.

  5. #5
    Quote Originally Posted by iDig3Dprinting View Post
    You have to remove the heat break from the heater block at the end. The hold it with a pair of pliers and heat up. If it is ABS you can immerse it in acetone.
    I am not sure what you are saying, what is the heat break? The block that has the nozzle attached to it, is that the heater block? I have removed the nozzle and tried de-clogging it like I would normally do by heating it all up, but that is not working at all. That little bit of filament, which is PLA, is stupid stuck.

  6. #6
    Engineer-in-Training iDig3Dprinting's Avatar
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    The nozzle, usually brass, screws into a rectangular shaped block that heats up (heat block). Opposite to where the nozzle screws in on the other side is a steel threaded tube, like a hollow nut, this also unscrews from the heat block on the other side. It looks like your PLA has got stuck in this, from what I can tell from your photo. If you unscrew this you can then hold that with a pair of pliers and heat it up with a lighter. The other end of the heat block seems to be screwed into that long metal block.

    Heating the hotend to about 100C will help you detach/unscrew parts which may have got a bit stuck. But remember this will mean you will have to be very careful not to burn yourself.

    It is also a good idea to try and clean the core with some lint free cloth as you can get carbon deposits from where you have heated the pla.

    PLEASE NOTE: As we don't have you printer in front of us, please be aware that our advice may not apply to your extruder set up.

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