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plevyakh
Joined: 10 Jan 2011
Posts: 39
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 Posted: Mon May 16, 2011 7:19 am Post subject: How to hide anti-rotation keyway holes? |
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I'm working on my instrument panel and looking at my switch layout and was wondering what others have done to hide the .125" anti-rotation keyway washer holes on a standard S700 Carling switch?
I would like to avoid having to make up a separate face plate over top of my aluminum switch plate.
Does one NOT drill the keyway hole all the way thru the panel insert?
Does one eliminate the keyway hole and just use loctite on the threads?
Can I just fill the keyway hole with something and apply the paint and then switch label overtop?
How do the professional panel shops deal with this?
TIA,
Howard
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Howard Plevyak
GlaStar / Cincinnati, Ohio |
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wschertz(at)comcast.net
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| Posted: Mon May 16, 2011 7:37 am Post subject: How to hide anti-rotation keyway holes? |
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One way is to take a piece of .032 aluminum strip that spans several switches, drill the hole for the strip, and the keyway hole, and install it BEHIND the panel with the lock tab facing the switch panel. Invisible and fairly easy.
Bill Schertz
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jay(at)horriblehyde.com
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| Posted: Mon May 16, 2011 8:13 am Post subject: How to hide anti-rotation keyway holes? |
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I’ve made a couple of panels now and use 2mm thick aluminium plate for the panel and drill from behind only 1mm deep, which provides plenty of grip for the tab.
Jay
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of wschertz(at)comcast.net
Sent: 16 May 2011 05:34 PM
To: aeroelectric-list(at)matronics.com
Subject: Re: How to hide anti-rotation keyway holes?
One way is to take a piece of .032 aluminum strip that spans several switches, drill the hole for the strip, and the keyway hole, and install it BEHIND the panel with the lock tab facing the switch panel. Invisible and fairly easy.
Bill Schertz
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nuckolls.bob(at)aeroelect
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| Posted: Mon May 16, 2011 11:15 am Post subject: How to hide anti-rotation keyway holes? |
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At 11:19 AM 5/16/2011, you wrote:
| Quote: |
I'm working on my instrument panel and looking at my switch layout
and was wondering what others have done to hide the .125"
anti-rotation keyway washer holes on a standard S700 Carling switch?
I would like to avoid having to make up a separate face plate over
top of my aluminum switch plate.
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Okay, then instead of making an overlay to take your
switch placards and hide holes in the panel, make as
switch underlay sheet to go BEHIND the panel and
provide holes for the anti-rotation washers which are
also on the back of the panel.
| Quote: | Does one NOT drill the keyway hole all the way thru
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If your panel is thick enough, you can drill 'divots'
on the back side deep enough so that the hole has
just reached the full diameter of the bit. Then take
a second bit of the same size that you've converted to
a 'spot facer' by grinding it flat. Use this to
flatten the bottom of your tab hole. You may have to
shorten the tab on the washer a bit. This plan is
much more labor intensive. The underlayment sheet
seems a faster and cleaner options.
| Quote: | Does one eliminate the keyway hole and just use loctite on the threads?
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Please don't.
| Quote: | Can I just fill the keyway hole with something and apply the paint
and then switch label overtop?
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Something like JB Weld could be used as a robust
"body putty" . ..
| Quote: | How do the professional panel shops deal with this?
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I've always used and overlay placard . . . usually
an engraved plastic produced by a sign and badge
shop. Use it to cover thru-holes for anti-rotation
washers installed on the back side of the panel.
Bob . . .
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plevyakh
Joined: 10 Jan 2011
Posts: 39
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| Posted: Wed May 18, 2011 5:03 am Post subject: Re: How to hide anti-rotation keyway holes? |
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Folks,
Thanks for the tips on this. I'll go with the overlay / strip behind the panel. Very helpful. What a great forum we have here!
Howard
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Howard Plevyak
GlaStar / Cincinnati, Ohio |
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pmnewlon
Joined: 20 Jan 2011
Posts: 21
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| Posted: Wed Jun 22, 2011 2:39 am Post subject: Re: How to hide anti-rotation keyway holes? |
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> One way is to take a piece of .032 aluminum strip that spans several switches, drill the hole for the strip, and the keyway hole, and install it BEHIND the panel with the lock tab facing the switch panel. Invisible and fairly easy.
Guess who got stalled for about a week trying to decide how to do this? This past weekend I went ahead and drilled the holes thru on my right arm rest panel. The parts are painted and assembled now so they are staying the way they are. I am so glad I saw this post before I did the instrument panel itself the same way! You guys rock 
Phil
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Eric M. Jones
Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts
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| Posted: Wed Jun 22, 2011 9:35 am Post subject: Re: How to hide anti-rotation keyway holes? |
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BTW,
Keyway slot DOWN.
It's settled.
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Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net |
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BobsV35B(at)aol.com
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| Posted: Wed Jun 22, 2011 12:03 pm Post subject: How to hide anti-rotation keyway holes? |
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Good Afternoon Eric,
The problem is that not only are the manufacturers inconsistent within the industry, but they are inconsistent within their own product lines. I ordered CBs for a project last year. All were ordered from the same manufacturer. Obviously, I wanted all of them installed so that I could read the amperage numbers easily.
Most of them had the keyway in the same orientation but many did not. My answer was to drill top and bottom keying holes for all circuit breakers so that they could all have the numbers right side up even though the keyways were in different orientations.
So much for standardization even for Klixon!
Happy Skies,
Old Bob
In a message dated 6/22/2011 12:40:13 P.M. Central Daylight Time, emjones(at)charter.net writes:
[quote][b]
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BGray(at)glasair.org
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| Posted: Wed Jun 22, 2011 12:25 pm Post subject: How to hide anti-rotation keyway holes? |
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I would think that the CB’s being jammed cheek to jowl, (at least they are on my panel), would make rotation impossible and the washers unnecessary.
Bruce
WWW.Glasair.org
--
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mrspudandcompany(at)veriz
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| Posted: Wed Jun 22, 2011 12:59 pm Post subject: How to hide anti-rotation keyway holes? |
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BTW,
Keyway slot DOWN.
It's settled.
--------
Eric M. Jones
Perhaps for you, but apparently not for the rest of the
world!!☺
Roger
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BobsV35B(at)aol.com
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| Posted: Wed Jun 22, 2011 1:21 pm Post subject: How to hide anti-rotation keyway holes? |
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Good Afternoon Bruce,
I have no doubt that you are correct and chances are my fears are unfounded, but by using the anti rotation washers, all torque loads are carried by the threaded barrel. If you rely on close proximity of the devices to stop rotation, any torque that is present will be applied to the case. Seems a bit more sanitary to confine that torque to one metal shaft!
Happy Skies,
Old Bob
In a message dated 6/22/2011 3:27:51 P.M. Central Daylight Time, BGray(at)glasair.org writes:
| Quote: |
I would think that the CB’s being jammed cheek to jowl, (at least they are on my panel), would make rotation impossible and the washers unnecessary.
Bruce
WWW.Glasair.org
-----Original Message-----
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of BobsV35B(at)aol.com
Sent: Wednesday, June 22, 2011 3:57 PM
To: aeroelectric-list(at)matronics.com
Subject: Re: How to hide anti-rotation keyway holes?
Good Afternoon Eric,
The problem is that not only are the manufacturers inconsistent within the industry, but they are inconsistent within their own product lines. I ordered CBs for a project last year. All were ordered from the same manufacturer. Obviously, I wanted all of them installed so that I could read the amperage numbers easily.
Most of them had the keyway in the same orientation but many did not. My answer was to drill top and bottom keying holes for all circuit breakers so that they could all have the numbers right side up even though the keyways were in different orientations.
So much for standardization even for Klixon!
Happy Skies,
Old Bob
In a message dated 6/22/2011 12:40:13 P.M. Central Daylight Time, emjones(at)charter.net writes:
01234567890123
4 |
[quote][b]
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http://www.matronics.com/Navigator?AeroElectric-List |
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