> "Serge F. Vidal" <[email protected]> writes:
> On ZS-WEC, my KR2, I converted all the automotive
> size instruments into aircraft size (2.25 inches) instruments.
>
> All I had to do was to make square flanges of the correct
> size out of aluminium 2.8mm sheets (I dreamt of a thicker,
> plastic sheet, without finding one), then cut out a hole in
> the middle at the correct automotive hole size, slip the
> instrument in, and voila!
I make the same kind of flanges from ~0.090" clear acrylic
plastic sheet --- the same stock from Home Depot that I use
for making windows, landing light covers, etc.
For the miniature automotive gauges ( ~1-5/8" diameter ), I
make a "size proportionate" flange and 4-40 machine screws
rather than up-size the gauge into a 2.25" Aircraft Hole with
6-32 screws. These are great space-saver gauges in a KR-1
sized panel.
For some I've even epoxied (or Crazy Glue, cyanoacrylate ?)
rivnuts into the corner holes for ease of installation. Counter-
boring both sides of the flange and *pulling* the rivnut is a bit
more problematic and sometimes breaks the corner off.
a r t
Art Cacella 1970 American AA-1 N6155L "Dinkie"
1972 KR-1 Plans, still not started <sigh>
( but four metal homebuilts underway )
Winston-Salem, NC
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