Heat Sink… how to?

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  • May 2, 2014 at 4:55 pm #5868
    nosredna
    Member

    Forgive me for the simple question.

    I have a really nice aluminum heatsink from a old PC processor I’d like to use in a enclosure with a 100mm fan. I know this likely is overkill but I’ve been bit by lost jobs with the grblshield and heat before building a nice cooling tower for it. I actually lost another job when said cooling tower lost a fan (thanks radio shack quality!)

    Anyway what is the best way to mount the heat sink on the back of the board near the copper heat sinks? I have some kapton tape.

    The heat sink I salvaged is just about exactly the same size as the board. by about 4 inches deep. It looks really neat.

    Thanks in advance!

    May 2, 2014 at 6:36 pm #5869
    cmcgrath5035
    Moderator

    What Hardware Version of tinyG do you have?
    V8 is the current shipping version.

    • This reply was modified 10 years, 4 months ago by cmcgrath5035.
    May 2, 2014 at 7:50 pm #5871
    nosredna
    Member

    Wow, Thanks for the fast reply..

    It is a V8. Like I said before I know it might be overkill. I just see it as extra insurance! Lol

    Thanks again!

    May 2, 2014 at 8:33 pm #5872
    cmcgrath5035
    Moderator

    I have a v7 which has, I believe, a bit more open area near the driver devices.
    I fabricated an interface from 3/8″sq AL stock, with necessary reliefs to avoid non-ground paths and drilled 4 M5 or M8 holes thru the ground PWB area to fasten the board, thru the interface, to a rather large surplus AMD CPU sink.
    I have found no need for fans so far, but seldom run jobs longer than 20 mins.
    The heat sink gets a little warm, the driver devices with attached dipsinks get to perhaps 105-110F, not bad at all.

    Of course none of this is really sanctioned abuse of the tinyG board, but works for me; YRMV.

    I can send some pics end of next week, traveling at the moment.

    May 10, 2014 at 11:30 am #5894
    cmcgrath5035
    Moderator

    nosredna
    Here are two pics of what I did with my V7
    heat sink 1
    heat sink 2

    The V8 board looks to be more busy in the area I used for connection.

    And, as I said, this is non-sanctioned abuse of the tinyG PWB; but the results work very well for me.

    • This reply was modified 10 years, 4 months ago by cmcgrath5035.
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