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Unresolved Extruder chewing up PLA like crazy

Discussion in 'Troubleshooting' started by terpbeard, Jan 4, 2017.

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  1. terpbeard

    terpbeard New Member

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    Now I believe I broke this thermistor trying to get it into the new heat block :( I was so close too
     

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    #41 terpbeard, Jan 13, 2017
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yep. Broken.
    Step one for messing with the extruder bits is to remove the thermistor and heater core (the bits with wires).
     
    #42 mark tomlinson, Jan 13, 2017
  3. terpbeard

    terpbeard New Member

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    I had removed it, this broke trying to push it into the new heater block
     
    #43 terpbeard, Jan 13, 2017
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    They are tricky little bits :)
    Actually the wires on the heater core are very easy to break too...
    (trust me)
     
    #44 mark tomlinson, Jan 13, 2017
  5. terpbeard

    terpbeard New Member

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    Not really sure what I'm supposed to do now. The thermistor didn't seem like it would even fit into this new heater block anyway. I barely tried and it resulted in it's breaking. Seems like ordering new heater cores was a waste of time and effort.
     
    #45 terpbeard, Jan 13, 2017
  6. terpbeard

    terpbeard New Member

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    Every time I attempt to fix something on the printer it gets broken worse.
     
    #46 terpbeard, Jan 13, 2017
  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    You can replace the hotend. The hexagon is not very expensive.

    Alternatively you can find a thermistor that matches that heater block.

    Learning to work on these machines takes a bit of practice. Take heart and just dont make the same mistake twice.

    Sent from my SAMSUNG-SM-G930A using Tapatalk
     
    #47 mark tomlinson, Jan 14, 2017
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    You can get a replacement hexagon from Amazon for about $40, but if you want it quick it will cost closer to what an E3D costs ($63).
    @Printed Solid has the E3D for $72: https://printedsolid.com/collections/accessories-and-upgrades/products/e3d-hot-end-kit-v6

    If you are still under whatever warranty Robo provided with the refurb units I would be on the horn with them to get this sorted out.

    They may have the hexagon cheaper as well (if you are out of warranty). They have more available than what is listed on their parts page, but you need to call them to sort that out.
     
    #48 mark tomlinson, Jan 14, 2017
  9. terpbeard

    terpbeard New Member

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    Robo3d is sending me out a new hexagon hot end with my warranty. Hopefully I can get it installed without breaking something new :confused:
     
    #49 terpbeard, Jan 14, 2017
    Rigmarol and Geof like this.
  10. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Awesome. Take it slow and careful you should be fine.
     
    #50 mark tomlinson, Jan 14, 2017
    Geof and terpbeard like this.
  11. mamejay

    mamejay Member

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    I had this issue with my hex end and replaced with a E3D end and now working fine. Also another thing that took me a while was setting the Z-offset to get it just right. When you get the system running send a picture of the first layer being laid down to see if the filament is grinding on the build plate.
    Mine was grinding on first layer and could fail 1 or 2 hours in. Found that .5mm offset fixed this.
     
    #51 mamejay, Jan 16, 2017
    terpbeard likes this.
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