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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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 Posted: Wed Apr 30, 2014 5:00 pm Post subject: Was Battery and master contactor - ok to mount horizontal |
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If riveting a nut plate isn't possible, a Clickbond nutplate is next
best thing, unless you cannot get to backside at all.
On 4/30/2014 12:42 PM, Robert L. Nuckolls, III wrote:
| Quote: |
<nuckolls.bob(at)aeroelectric.com>
At 02:37 PM 4/30/2014, you wrote:
> (Please pardon the hijacking of this thread...)
> Jim,
>
> I wasn't the original poster on this thread. I think it was Sacha.
> However, speaking of Rivnuts...
>
> I've experienced some of the issues you are talking about. The last
> few times I've used Rivnuts, I put an internal-tooth lockwasher on
> the back side of the Rivnut before squeezing it, so that it gets
> clamped between the work surface and the bulge formed by squeezing.
Nice vaccination against spinning rivnut syndrome
. . . but if you could get at the back side, why not
nutplates?
Bob . . .
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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
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raymondj(at)frontiernet.n
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| Posted: Thu May 01, 2014 7:20 am Post subject: Was Battery and master contactor - ok to mount horizontal |
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Another solution to rivnut rotation I saw suggested somewhere is to file
2 points into the hole, making it kind of a diamond shape.
Theoretically, the bulge expands out in to the diamond shape and
prevents rotation.
Haven't actually tried it, but it seems worth investigating.
Raymond Julian
Kettle River, MN
The things we admire in men, kindness and generosity, openness, honesty,
understanding and feeling are the concomitants of failure in our system.
And those traits we detest, sharpness, greed, acquisitiveness, meanness,
egotism and self-interest are the traits of success. And while men
admire the quality of the first they love the produce of the second.
-John Steinbeck, novelist, Nobel laureate (1902-1968)
On 04/30/2014 03:53 PM, Sacha wrote:
| Quote: |
> I wasn't the original poster on this thread. I think it was
>> Sacha.
No need to apologize for "high jacking". I've gathered lots of food for thought which I will now attempt to digest in order to design the battery and contactor mount. Thank you all.
I wanted to use rivnuts because they would allow me to permanently fix the steel plate and then bolt things onto it. The rivnuts I was going to use were steel ones. Of course I wasn't aware of the issues with them coming loose.
I'm also having second thoughts about using a stainless steel base as I just weighed it and it's 1kg which seems like overkill.
Sacha
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