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Max. temp for hot-end

Discussion in 'Troubleshooting' started by polylac, Jul 23, 2013.

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  1. polylac

    polylac New Member

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    Hi

    Does anybody know what the maximum temperature for the hot end is?
     
    #1 polylac, Jul 23, 2013
  2. CAMBO3D

    CAMBO3D New Member

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    educated guess around 240c for a peek hotend.

    from the jhead wiki http://reprap.org/wiki/J_Head_Nozzle

    "
    Notes:
    1. PEEK nozzle holders have a maximum working temperature of roughly 248 degrees Celsius. Due to many variables, it is highly recommended that this temperature is not to be approached. Above this temperature, PEEK will melt and the hot-end will fail."
     
    #2 CAMBO3D, Jul 23, 2013
  3. Harry

    Harry Team ROBO 3D
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    You should not heat above 230. Heating above 230 risks the chance of ruining your hotend. 240 is the melt temp of the PEEK and if you do anything above 230, and your thermometer may read slightly lower than the actual temp, you could end up melting it. 230 should be the 100% max temp you use.
     
    #3 Harry, Jul 23, 2013
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  4. polylac

    polylac New Member

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    ok, thx for the answers
     
    #4 polylac, Jul 24, 2013
  5. Harry

    Harry Team ROBO 3D
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    No problem. Let me know if you need more help.
     
    #5 Harry, Jul 24, 2013
  6. CAMBO3D

    CAMBO3D New Member

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    ok question harry and robo team( more for the robo team)

    why is the max temp for the hot end set to 2 75C in the marlin robo firmware? (not that i would ever go that high with a peek hot end)
    seems like it should be lower if the max temp of the hot end is 230c.

    robo firmware maxtemp.jpg
     
    #6 CAMBO3D, Jul 24, 2013
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  7. Harry

    Harry Team ROBO 3D
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    Hey Cambo. Great point! I will send this to the team right away!
     
    #7 Harry, Jul 24, 2013
  8. CAMBO3D

    CAMBO3D New Member

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    hmm still no answer for this? This really gets annoying considering the team is on the forum and doesnt respond..
     
    #8 CAMBO3D, Aug 2, 2013
  9. Harry

    Harry Team ROBO 3D
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    Hey Cambo, what questions are you wondering? I told them I would send them to this and they implemented it (at least they told me they were going to be implementing it for all other printers to be released.
     
    #9 Harry, Aug 2, 2013
  10. Harry

    Harry Team ROBO 3D
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    They now have it set to I believe 230 if thats what you were wondering.
     
    #10 Harry, Aug 2, 2013
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