Problem with MK8 Extruder

This topic contains 8 replies, has 2 voices, and was last updated by  Ryan 2 weeks, 6 days ago.

Viewing 9 posts - 1 through 9 (of 9 total)
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  • #49589

    Andre_L
    Participant

    Hi, I am starting to have a problem with my MP3DP especially with the MK8 extruder. Since some time the extrusion doesn’t seems constant. When printing the first layer I start extruding perfectly then at some point the filament output by the extruder becomes very tiny and up to a point where nothing gets extruded. I tried to adjust the screw on top of the extruder which I think sets the tension and also replace the nozzle but nothing works.

    For the first time today I can hear that either the motor skip steps or the gear grind the filament but clearly the filament is not provided evenly.

    Any Ideas?

    Attachments:
    #49592

    Ryan
    Keymaster

    How long have you been using it, has it worked flawlessly until now?

    #49595

    Andre_L
    Participant

    Yes I am using it for quite a while, several months maybe a year. The first layer was always a challenge as I need to adjust the bed almost every day that’s why I installed a BLTouch but now I can’t really benefit of the autoleveler since the extruder is not working properly. The problem start before I installed the BLTouch, just to clear that it is probably not related.

    #49598

    Ryan
    Keymaster

    Chances are good your PTFE liner has crapped out. Various reasons but Mine last about 6-8 months of continuous low temp use. I switched over to the microswiss so I don’t have to deal with it anymore.

    #49600

    Andre_L
    Participant

    That was my next step. Can you give me more info on the microswiss. Is it available at Amazon?

    Also talking about extruder, I notice that you now sell the Titan Aero, do you recommend it over the MK8? It is more pricy so what would be the advantage going with it.

    Since I have a set of 500mm rods I was planning to create a larger MP3DP and consider changing the extruder. Also is the parts for the new MP3DP you create available? The corners seems to support half inch structure. I am very interested.

    #49609

    Ryan
    Keymaster
    That was my next step. Can you give me more info on the microswiss. Is it available at Amazon?

    Not sure about amazon, https://shop.v1engineering.com/collections/parts/products/micro-swiss-high-temp-extruder-throat

     

    Also talking about extruder, I notice that you now sell the Titan Aero, do you recommend it over the MK8? It is more pricy so what would be the advantage going with it.

    Ummmm, the biggest advantage is it is lighter and the parts are seriously high quality. Mine now come with the all metal throat (that WAS the other major factor), so you might be able to print a little faster, depending on your bed weight. Other than that it is quality. The import stuff, if you have seen, I have to offer as a kit now as the pre-builts are complete sh#t. The difference between the mk8 kit I now sell with the micro swiss throat and the Areo is not huge. If money isn’t that big of a deal get the aero, if every penny counts the mk8 will get the same job done. Hope that doesn’t piss of the E3D team. Don’t want to lose my account.

    Also is the parts for the new MP3DP you create available? The corners seems to support half inch structure. I am very interested.

    Very very soon. I am printing with it non stop to make sure everything is legit then I will start releasing it in a few days I hope.

     

    • This reply was modified 3 weeks ago by  Ryan.
    #49613

    Andre_L
    Participant

    Thanks a lot for the info Ryan!

    1 user thanked author for this post.
    #49649

    Andre_L
    Participant

    Just to let you know, I change the metal threaded tube including the PTFE liner and my problem is solved. Thanks again! Feels great to have such support! I will look into the Microswiss for a more permanent solution.

    #49665

    Ryan
    Keymaster

    I used to just swap out the liners all the time, super cheap. I just got sick of taking it apart (6 printers it really gets old) that is when I found the microswiss stuff.

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