Please kindly take a look at the following sketch:
I could use 1/4” plate, but it is more expensive, and using 1/8” provides me with greater flexiblilty (in case I need more “depth” or “height” for the Driver), and is also easier to shape.
Right now, I am planning to have two “solid” discs, and two discs with a 22mm “donut hole” for the Driver.
I am a little worried about poor heat transfer between the discs, but I have found some good (trustworthy) thermal grease. Both Dow Corning TC-5022 and Shin-Etsu X-23-7921-5 appear to be “excellent” as far as “Thermal Interface Materials” go.
(Dow claims thermal conductivity of 4.0W/mK for their TC-5022 which is supposed to be very high, but I really don’t understand what that number means. All I know is that apparently most other “high end” CPU greases are making outrageous claims, but don’t actually measure up despite their cost. One company claims 8.7 W/mK, but when tested by the US National Renewable Energy Laboratory, it was found to be only 0.94 W/mK.)
Anyway, I am planning to use a thin layer of good thermal grease and bolt the assembly together with small flat heat screws and nuts.
I don’t wish to get into any large scale soldering, but I may end up using some very soft solder around the outer edge of this assembly to help achieve a good tight fit between it and the host body.
Anyone see any inherent problems with this design?
Any and all comments and suggests will be greatly appreciated.