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Loud fan sounds, then heated bed cools down

Discussion in 'Troubleshooting' started by Darkhunter12, Oct 13, 2014.

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  1. Darkhunter12

    Darkhunter12 New Member

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    Hi guys,
    I have recently been experiencing a problem! My bed cannot exceed 90 degrees celcius. Also my printer when heating up sounds a loud fan and then the bed gradually cools down, the fan goes off then it heats up again. It takes my bed a while to heat up now. A solution will ne greatly appreciated.
    Thanks
     
    #1 Darkhunter12, Oct 13, 2014
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Which printer version? (more importantly which firmware) They added a limit (85 deg C I think) in one of the firmware releases.
    Sounds like that is what you might be hitting.
     
    #2 mark tomlinson, Oct 14, 2014
  3. Mike Kelly

    Mike Kelly Volunteer

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    Definitely hitting the temp limit.
     
    #3 Mike Kelly, Oct 14, 2014
  4. Darkhunter12

    Darkhunter12 New Member

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    How do I change this?
     
    #4 Darkhunter12, Oct 14, 2014
  5. Mike Kelly

    Mike Kelly Volunteer

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    Are you getting warping at 85?
     
    #5 Mike Kelly, Oct 14, 2014
  6. Darkhunter12

    Darkhunter12 New Member

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    Yes
     
    #6 Darkhunter12, Oct 14, 2014
  7. Mike Kelly

    Mike Kelly Volunteer

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    #7 Mike Kelly, Oct 14, 2014
  8. Darkhunter12

    Darkhunter12 New Member

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    I am using Marlin 3_14_14. Arduino 1.5.6-r2 and my Bed_Maxtemp is set to 150 do I need to download the one you said. The reason im asking is because then I will need to change everything else I changed on my old one
     
    #8 Darkhunter12, Oct 15, 2014
  9. Darkhunter12

    Darkhunter12 New Member

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    Dont worry, I went ahead and downloaded the one you said and kept the max bed temp at default (115) and when it got to about 86 degrees the loud fan came back on and started cooling :(
     
    #9 Darkhunter12, Oct 15, 2014
  10. Mike Kelly

    Mike Kelly Volunteer

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    Do you get an error in the software? Open terminal then try heating.
     
    #10 Mike Kelly, Oct 15, 2014
  11. Darkhunter12

    Darkhunter12 New Member

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    I dont think, what does this mean?
     
    #11 Darkhunter12, Oct 15, 2014
  12. Mike Kelly

    Mike Kelly Volunteer

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    #12 Mike Kelly, Oct 15, 2014
  13. Darkhunter12

    Darkhunter12 New Member

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    I am using simplify3d and no warning or error comes up (in communication) it just cools back done
     
    #13 Darkhunter12, Oct 15, 2014
  14. Mike Kelly

    Mike Kelly Volunteer

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    So use a different software then. I'm not here to hold your hand. Give me information, I'm not psychic.

    Call simplify3d if the problem is isolated to that.
     
    #14 Mike Kelly, Oct 15, 2014
  15. Darkhunter12

    Darkhunter12 New Member

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    Okay so I am using simplify3d and I open up the terminal and when it heats up to around 80 degrees the fan comes on, no warning or errors come up in the terminal. My max temp is set to 115 for the bed on the new software you gave me. I flashed it and everything
     
    #15 Darkhunter12, Oct 15, 2014
  16. Darkhunter12

    Darkhunter12 New Member

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    86 degrees*
     
    #16 Darkhunter12, Oct 15, 2014
  17. Mike Kelly

    Mike Kelly Volunteer

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    What fan.

    Might be tripping your polyfuse. Do you have a fan on it?

    Also try in repetier. Isolate the issue
     
    #17 Mike Kelly, Oct 15, 2014
  18. Darkhunter12

    Darkhunter12 New Member

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    When it goes over 86 deg a loud fan comes on then the bed cools down.
    Can you please explain what the polyfuse is and where is located? I will try repetier soon :)
     
    #18 Darkhunter12, Oct 15, 2014
  19. Mike Kelly

    Mike Kelly Volunteer

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    Tell me which fan you mean. Stop saying "A fan" there's 4 fans on it. Tell me which exactly.

    Also google it man. Ramps polyfuse
     
    #19 Mike Kelly, Oct 15, 2014
  20. Darkhunter12

    Darkhunter12 New Member

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    I am honestly not sure, I will try and find it when i get home, i am away from the printer now.
     
    #20 Darkhunter12, Oct 15, 2014
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