danny_galaga Posted February 19, 2023 Share Posted February 19, 2023 Or lack thereof! I bought two brass bus bars for my instrument panel ages ago and noted a lack of washers. Figured I'd cross that bridge later. Well it's later 😄  I'm pretty sure when I was an auto electrician, bus bars would come with star washers. But maybe I could get away with Loctite? I was trying in earnest to keep as much steel as possible away from the panel because of the compass. But now I realise my engine VDO type engine instruments (Aviasport) have nice big steel brackets to hold them in place! So what would a few tiny zinc star washers matter?  Thoughts? Link to comment Share on other sites More sharing options...
rodgerc Posted February 19, 2023 Share Posted February 19, 2023 Austenitic grades (304/316) of stainless steel are generally considered non-magnetic....But your engine mount will likely provide more trouble than a few tiny washers. 1 2 Link to comment Share on other sites More sharing options...
old man emu Posted February 19, 2023 Share Posted February 19, 2023 16 hours ago, danny_galaga said: I was trying in earnest to keep as much steel as possible away from the panel because of the compass. Don't piss before your water comes. Any deviating effects your airframe, engine and avionics are likely to make on your magnetic compass will be dealt with when the aeroplane is complete and you swing the compass to get the data for your compass deviation card. You did ensure that when you bought your compass you specified that it had to be adjusted for Southern Hemisphere dip, didn't you? 3 1 Link to comment Share on other sites More sharing options...
danny_galaga Posted February 19, 2023 Author Share Posted February 19, 2023 19 minutes ago, old man emu said: Don't piss before your water comes. Any deviating effects your airframe, engine and avionics are likely to make on your magnetic compass will be dealt with when the aeroplane is complete and you swing the compass to get the data for your compass deviation card. You did ensure that when you bought your compass you specified that it had to be adjusted for Southern Hemisphere dip, didn't you? Yes, it's from Sert Efrika Link to comment Share on other sites More sharing options...
danny_galaga Posted February 19, 2023 Author Share Posted February 19, 2023 Ok then I'll pay Bunnings aerospace a visit for some star washers 🙂 Link to comment Share on other sites More sharing options...
Blueadventures Posted February 20, 2023 Share Posted February 20, 2023 Or Jaycat aero?? 1 Link to comment Share on other sites More sharing options...
danny_galaga Posted February 20, 2023 Author Share Posted February 20, 2023 1 hour ago, Blueadventures said: Or Jaycat aero?? Yes I'll check them too. Have to get a capacitor from there anyway Link to comment Share on other sites More sharing options...
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