be about 5 inchs square and about 3/4 inch thick. Please keep in
mind that looks are paramount for a model so slapping something
together with a heater core is out of the question.

I would like to make the entire radiator out of stainless steel.
I would like to make the fins out of SS stock about 35 thousands thick.
This leads me to all kinds of questions. I need to run some tubes
through the fins. How do I run the tubes through the fins and still
maintain good thermal contact? I also need to maintain a uniform
spacing on all the fins. Obviously drilling holes in the fins and
sticking the tubes through the plate will not work. Should I drill
an undersize hole and then press the tube through the fin? Is there
some way to punch a hole in the fin such that it leave a consistant
raised surface that would provide the fin to fin spacing??

I envision silver soldering the manafold to the tubes. How do I
do this with tarnishing the fins? I suspect there is no way,
so perhaps you can suggest how to attach a manafold to the tubes.

I need about 60 fins that are cut from sheet metal; I don't have
a shear. I suspect my band saw with mutulate thin stock. I could
use a slitting saw, but that seems very time consuming. I suppose
I could gang some slitting saws on the horizonal mill and cut several
at a time. After rough cutting the fins, I could sandwich them all
together and mill them to make them all consistant but I need
something reasonable to start with.

chuck

In article ,
(Charles A. Sherwood) wrote:

...... Obviously drilling holes in the fins and
sticking the tubes through the plate will not work.

Sure it'll work, just epoxy them together with thermal conducting epoxy.

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/

Charles A. Sherwood wrote:
be about 5 inchs square and about 3/4 inch thick. Please keep in
mind that looks are paramount for a model so slapping something
together with a heater core is out of the question.

Well... You could get get some Cerrobend, pour it into a sheet the
thickness of the spacing of the fins. Cut it into strips, and sandwich
the fin material between the strips. Mill and drill the assembly as a
block (make the holes undersize for a friction fit with the tubes).
Insert the tubes. The assembly should now be stable enough to solder the
tubes into the manifold while melting out the Cerrobend.

Kevin Gallimore

Charles
Have you connected up with this group; www.portlandmodelengineers.org ?
Chase down the contacts and contact Gary Hart. I believe that you will find
him a wealth of information, and joining up with the group will get you
contacts galore in your neck of the woods.
lg
no neat sig line


"Charles A. Sherwood" wrote in message
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