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Topic: Is storing a compass in a backpack a good idea, When theres other metal/magnetic stuff< Next Oldest | Next Newest >
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PostIcon Posted on: Oct. 17 2013, 4:48 pm  Skip to the next post in this topic. Ignore posts   QUOTE

So I just thought of this today but I usually store my gear in my packs and I put some of the small stuff (compass, pocketknife, mini flashlight) in a pot to keep it all together. do you think this will effect the compass at all? the pot is stainless steel plus the knife and batteries. it still works but im wondering if there could be a long term effect.
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PostIcon Posted on: Oct. 17 2013, 4:49 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

Only if the metal is magnetic. Otherwise, no issue at all.

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PostIcon Posted on: Oct. 17 2013, 7:31 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE


(Tigger @ Oct. 17 2013, 4:49 pm)
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Only if the metal is magnetic. Otherwise, no issue at all.

+1

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PostIcon Posted on: Oct. 17 2013, 8:55 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

Ok so since the pot is steel then it probably shouldn't go in there then. I'll have to find a spot for it some where else
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PostIcon Posted on: Oct. 17 2013, 9:16 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

UM? No, don't worry about that.

If you place a very strong magnet near the relatively weak compass needle it may effect it. You only need to be concerned about metals and magnetics altering the functioning of the compass - meaning you want to hold it away from wristwatches, metal poles, etc when it's in use. No worries about storing it.


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PostIcon Posted on: Oct. 17 2013, 9:22 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE


(outbackpacker3 @ Oct. 17 2013, 5:55 pm)
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Ok so since the pot is steel then it probably shouldn't go in there then. I'll have to find a spot for it some where else

Cooking pots are almost universally stainless steel for its stain resistance and that's close to always, given its nickel content,  non magnetic.
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PostIcon Posted on: Oct. 17 2013, 11:01 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

The important question is whether storing your compass deep in your pack instead of on your person is if it's safe?

Keep your ten essentials in your pockets.


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PostIcon Posted on: Oct. 18 2013, 12:00 am Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE


(TDale @ Oct. 17 2013, 8:01 pm)
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The important question is whether storing your compass deep in your pack instead of on your person is if it's safe?

Keep your ten essentials in your pockets.

Pretty sure the OP is referring to at home and not on he trail.

Totally agree on the trail the compass should be on your person.
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PostIcon Posted on: Oct. 18 2013, 12:47 am Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

I keep a compass on me, on my pack, and in my pack.

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PostIcon Posted on: Oct. 18 2013, 10:02 am Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

Yeah I keep my gear on me when I'm on the trail but to store it I keep most stuff in my packs.

High_sierra_fan
the pot is stainless steel but it is magnetic too. I thought that it was chromium and steel for stainless not nickel.
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PostIcon Posted on: Oct. 18 2013, 10:53 am Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE


(outbackpacker3 @ Oct. 18 2013, 7:02 am)
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Yeah I keep my gear on me when I'm on the trail but to store it I keep most stuff in my packs.

High_sierra_fan
the pot is stainless steel but it is magnetic too. I thought that it was chromium and steel for stainless not nickel.

Chromium and steel make stainless: nickel added disrupts the magnetic aspect.

"As for whether they are magnetic, the answer is that it depends. There are several families of stainless steels with different physical properties. A basic stainless steel has a 'ferritic' structure and is magnetic. These are formed from the addition of chromium and can be hardened through the addition of carbon (making them 'martensitic') and are often used in cutlery. However, the most common stainless steels are 'austenitic' - these have a higher chromium content and nickel is also added. It is the nickel which modifies the physical structure of the steel and makes it non-magnetic. "

http://www.physlink.com/Education/AskExperts/ae546.cfm

I expect I should have phrased that "depending" on it's nickel content....
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PostIcon Posted on: Oct. 18 2013, 11:20 am Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

Ok I see. Mine definitely doesn't have nickel I tested it with a magnet and it stuck to it pretty good
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PostIcon Posted on: Oct. 18 2013, 2:42 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE


(outbackpacker3 @ Oct. 18 2013, 8:02 am)
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Yeah I keep my gear on me when I'm on the trail but to store it I keep most stuff in my packs.

High_sierra_fan
the pot is stainless steel but it is magnetic too. I thought that it was chromium and steel for stainless not nickel.

I think people are confusing magnetic with magnetized.

A compass can only be damaged if you put it close to another magnet.  Putting it close to something made of metal will have no effect.
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PostIcon Posted on: Oct. 18 2013, 4:46 pm Skip to the previous post in this topic. Skip to the next post in this topic. Ignore posts   QUOTE

The admonition about about iron extends and supports the OP's concern: a casual search hit this about avoiding both iron (steel that would attract a magnet) and magnetic field generating items when storing a magnet, though it didn't expand on why..

http://www.ehow.com/how_5946827_store-magnetic-compass.html

"Keep the compass in a closet or other area where it will not interact with magnetic or iron-containing materials. If you keep it in the closet, store it away from any heavy belt buckles. Do not keep the compass in the garage, as the magnetic field generated by electric motors may damage the compass.
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PostIcon Posted on: Oct. 18 2013, 5:37 pm Skip to the previous post in this topic.  Ignore posts   QUOTE

Yup pretty much if it can mess up the direction of the needle it can damage it over the long term is what I've found here and other places online I also found that if your compass isn't pointing north that you can use a strong magnet and align the needle with the North Pole of the magnet to put it back to normal.

That point about electric motor is interesting I wonder what a car with an electric motor would do to a compass something like a Volt or a Prius or Tesla?
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14 replies since Oct. 17 2013, 4:48 pm < Next Oldest | Next Newest >

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