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02-13-2015, 08:05 PM
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Join Date: Jan 2014
Location: Phoenix
Posts: 160
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Magnetic Tools
I thought I remember reading somewhere here that no one should ever use a magnetic screwdriver or other magnetic tools when building but I can't find the thread.
I'm just wondering if I can use a magnetic screwdriver and if so, what precautions do I need to take?
Thanks!
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02-13-2015, 08:13 PM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,947
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Magnetism
You want to keep magnetism away from your ADHARS and magnetometer. Most use aluminum shelf and stainless screws but it's best to keep the magnet away. Lots of other ways to hold screws.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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02-13-2015, 09:40 PM
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Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,805
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Heed Wirejock's cautions, but these tools have a place. A magnetic retrieval tool helped immensely when I was installing the main gear weldments on my -9A, to get the nuts started on the bolts inside the spar receiver.
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Doug
RV-9A "slider"
Flew to Osh in 2017, 2018 & 2019! 
Tail number N427DK
Donation made for 2020
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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02-13-2015, 09:44 PM
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Join Date: Jan 2005
Posts: 3,646
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Quote:
Originally Posted by jeffwhip
I thought I remember reading somewhere here that no one should ever use a magnetic screwdriver or other magnetic tools when building but I can't find the thread.
I'm just wondering if I can use a magnetic screwdriver and if so, what precautions do I need to take?
Thanks!
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Are you kidding?  Sounds like the old story of not using battery powered drills while building. Of course you may not want to use them near something that's magnetically sensitive, but how many places on an airplane might fit that category?
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Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto
Donation reminder: Jan. 2021
Last edited by alpinelakespilot2000 : 02-13-2015 at 09:46 PM.
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02-13-2015, 11:40 PM
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Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,189
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Caution on SS SCREWS
Beware of using SS screws in non magnetic areas like by the AHRS and magnetometer. Many commonly available SS screws ARE somewhat magnetic, it depends on the alloy. Better to use brass... For non magnetic fasteners...
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Bob
Aerospace Engineer '88
RV-10
Structure - 90% Done
Cabin Top - Aaarrghhh...
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ShowPlanes Cowl with Skybolts Fitted - Beautiful
Wiring...
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02-14-2015, 01:15 AM
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Join Date: Feb 2008
Location: Los Angeles, CA
Posts: 146
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LMAO
And if you have a septic tank instead of being on city sewer... make sure you use single ply toilet paper only. And be sure to courtesy flush your dairy queen swirl before wiping.
Sorry, couldn't resist.
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RV-x Planning stage
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02-14-2015, 05:36 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,516
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Quote:
Originally Posted by rocketman1988
Beware of using SS screws in non magnetic areas like by the AHRS and magnetometer. Many commonly available SS screws ARE somewhat magnetic, it depends on the alloy. Better to use brass... For non magnetic fasteners...
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+1 ABSOLUTELY!! I checked !! Many stainless screws are 400 series AND magnetic. Wouldn't worry about the screwdrivers, though. You can demag with an old tape eraser. (museum piece :-) )
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Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
Last edited by BillL : 02-14-2015 at 05:39 AM.
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02-14-2015, 10:57 AM
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Join Date: Jan 2014
Location: Phoenix
Posts: 160
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Thanks for all the help!
__________________
Rudder - Complete
Horizontal Stabilizer - Complete
Vertical Stabilizer - Complete
Elevators - Complete
Cabin Cover - Complete (wheewww!)
FWF - Complete
EFII 32 - In Progress
Dues Paid Through 2020
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