"--exray--" wrote in message
...
jakdedert wrote:

and small cabinets/ enclosures.

My stock of double sided epoxy board is a 4 ft by 4 ft sheet I bought at
a
hamfest for $20 or 25 IIRC. I have some smaller pieces left over from
the
past.

If you don't want to solder partitions or sides, you might do as I and
buy

a

10-ft length of extruded aluminum angle, 0.25 inches on a side. This way

you

can screw things together without worrying about overheating /

delaminating

the PC board. You can also take things apart if needed :-(



I'd be careful about using aluminum for this. You could set up a
situation
where over the years, the dissimilar metals would begin to react and
cause
all sorts of gremlins. I'd think you'd want to use copper or brass
angle
stock, which is also available, albeit more expensive...or plastic; or
even
wood.

You can tin the edge of the PCB and avoid this for the most part.

-Bill

Probably, but the object was to eliminate heating the copper board. Other
coatings would work, as well. Zinc chromate primer is what they use in
aircraft construction.

jak

jakdedert wrote:

You can tin the edge of the PCB and avoid this for the most part.

-Bill


Probably, but the object was to eliminate heating the copper board. Other
coatings would work, as well. Zinc chromate primer is what they use in
aircraft construction.

jak

I jumped in at the "make them removable" part. Doing a bit of tinning
wouldn't really qualify as heating the board enough for the copper to
peel up.
Actually I think that would be preferable to "paint on" coatings that
might flake/chip around the screw holes in this case.
But we have now made a simple everyday PCB board box into a home project
that meets FAA specs.
:-)
-Bill

"--exray--" wrote in message
...
jakdedert wrote:

You can tin the edge of the PCB and avoid this for the most part.

-Bill


Probably, but the object was to eliminate heating the copper board.
Other
coatings would work, as well. Zinc chromate primer is what they use in
aircraft construction.

jak

I jumped in at the "make them removable" part. Doing a bit of tinning
wouldn't really qualify as heating the board enough for the copper to
peel up.
Actually I think that would be preferable to "paint on" coatings that
might flake/chip around the screw holes in this case.
But we have now made a simple everyday PCB board box into a home project
that meets FAA specs.
:-)
-Bill

LOL...but, naah...the original idea would work with just a quick squirt of
z.c. primer (from a can) on the inside of the aluminum angle stock, I
guess...not that much trouble, in order to avoid further troubles down the
line. If the assembly never got wet--or stored/used in a humid
environment--those problems would likely never show up. OTOH, probably best
to avoid problems in the first place.

jak

"--exray--" wrote in message
...
jakdedert wrote:

You can tin the edge of the PCB and avoid this for the most part.

-Bill


Probably, but the object was to eliminate heating the copper board.
Other
coatings would work, as well. Zinc chromate primer is what they use in
aircraft construction.

jak

I jumped in at the "make them removable" part. Doing a bit of tinning
wouldn't really qualify as heating the board enough for the copper to
peel up.
Actually I think that would be preferable to "paint on" coatings that
might flake/chip around the screw holes in this case.
But we have now made a simple everyday PCB board box into a home project
that meets FAA specs.
:-)
-Bill

LOL...but, naah...the original idea would work with just a quick squirt of
z.c. primer (from a can) on the inside of the aluminum angle stock, I
guess...not that much trouble, in order to avoid further troubles down the
line. If the assembly never got wet--or stored/used in a humid
environment--those problems would likely never show up. OTOH, probably best
to avoid problems in the first place.

jak

jakdedert wrote:

You can tin the edge of the PCB and avoid this for the most part.

-Bill


Probably, but the object was to eliminate heating the copper board. Other
coatings would work, as well. Zinc chromate primer is what they use in
aircraft construction.

jak

I jumped in at the "make them removable" part. Doing a bit of tinning
wouldn't really qualify as heating the board enough for the copper to
peel up.
Actually I think that would be preferable to "paint on" coatings that
might flake/chip around the screw holes in this case.
But we have now made a simple everyday PCB board box into a home project
that meets FAA specs.
:-)
-Bill