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  1. #1
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    Anyone making heatsink for the l-flex?

    Man - little stuff like this makes me really wish I had a benchtop lathe, or a rotary mill.

    I'm having trouble with thermal tape, to the point where I just don't trust it.

    I am wondering if anyone makes a heatsink for the l-flex that would allow you to bond the driver to it with AA, without shorting out the leads on the bottom, so top diameter would be in the ~14mm, I suppose, and the base could be ~17 or whatever is easily done.

    I'm betting I may not be the only one interested in a handful.

    something along these lines is what i was thinking.

    Anyone making heatsink for the l-flex?-slug.jpg

  2. #2
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    well, nevermind. George says it is best to use the whole bottom of the flex as a sink, so I'm back to square 1 with trying to get the thermal tape to work better.

    On a silver-lining note, I spent most of the morning trying to figure out how to make that curved surface in the 3D modeling program, so not all was lost.

  3. #3
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    On the lights that I have done with the Lflex, I have made the cavity that it fits into just deep enough for the thermal tape, the board, and another layer of the thermal tape. I put the thermal tape down, then the board (leads soldered then clipped near flush, then carefully filed flush) then 2 layers or thermal tape over the MCU. Then I screw the cover down. This puts everything in nice tight contact with the housing. I think it does a good job keeping the heat in an Lflex under control and since the heat sensing in the Lflex happens in the MCU it might help it respond a bit more accurately to housing temps.

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