Thermocouple / high temp upgrade!

Discussion in 'E3D-v6 and Lite6' started by jbainesy, Mar 31, 2014.

  1. jbainesy

    jbainesy Member

    Joined:
    Mar 31, 2014
    Messages:
    3
    Likes Received:
    0
    Hi!

    Just wondering, I'd like to print exotic materials with my E3D hot-end and, as stated on your product page, it is capable of higher temperatures IF a thermocouple is used instead of the provided thermistor.

    Can we get a short "how to" on this?

    Specifically:

    * What would we need to change in the firmware (I use marlin)
    * How can we determine if we need the 'add on board' or if we can just directly wire the thermocouple to our boards (I have a Melzi)
    * Anything else I might not have thought of!

    I am assuming I will need the add-on board, but I have no idea if I'm honest!

    Changing the firmware is something I can do, but only if I have some basic instructions, I assume it's just a matter of changing the thermistor 'beta' values or something, but again, I'd appreciate any help to make sure I do it correctly!


    Thanks in advance for any help ;-)
     
  2. jbainesy

    jbainesy Member

    Joined:
    Mar 31, 2014
    Messages:
    3
    Likes Received:
    0
    Errr... Sorry...

    I'm buying this for my NEW bot, which will have a RUMBA board, so - I would need instructions related to that board ;-)

    It sounds like I'll need the add-on board, but I have no idea how to use it! (Unless it simply hooks up to the thermistor input)
     
  3. Sanjay

    Sanjay Administrator
    Staff Member

    Joined:
    Feb 27, 2014
    Messages:
    125
    Likes Received:
    118
    Hi,

    The Rumba doesn't have any onboard thermocouple amplifiers available, which means you will need an external add-on board. Unfortunately right now we don't have any in stock, and are having a hard time getting more so I can't give you a firm timeframe on when they might be back, sorry about that!

    Sanjay
     
  4. jbainesy

    jbainesy Member

    Joined:
    Mar 31, 2014
    Messages:
    3
    Likes Received:
    0
    Thanks for the reply Sanjay.

    Damn! I am itching to get the hotend so I'll order that for now. At least I now know what I will need when I upgrade the unit to use a thermocouple - thanks!

    Assuming that this board would attach to spare pins? or does it attach to the normal thermistor pins? And I do imagine the firmware would need a tweak, is there a "beta" value for the thermocouple like with thermistors or, how does this work? do you know?

    Cheers ;-)
     

Share This Page