> "Serge F. Vidal" <serge.vi...@ate-international.com> 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 ________________________________________________________________ The best thing to hit the Internet in years - Juno SpeedBand! Surf the Web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!