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Picture of Back Pack Quick Release Pins
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Quick release mechanisms are very common on military gear. More often they are found on ruck sack straps. They come in useful if you are ever injured or caught up in something and you have to remove your pack quickly. This "high speed low drag" pin replicates that same quick release action. 

Note: "High speed low drag" is a military talk for "cool".


 

Step 1: Start with 3/8" Aluminum rod.

Picture of Start with 3/8
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The overall length of this pin is about 1&1/2". I cut off about 3" to work with. If you do like I did and use a pipe cutter in a lathe use extreme caution and at a very low RPM. 
 
What is the need for this?

In the military, you would use it to drop your gear quickly, whether for convenience or need. For instance, if you're carrying a 60-pound ruck on a march and you're ambushed, that bulky pack is only going to slow you down and/or get in your way.

In the backpacking world, a potential survival situation might include a bear attack or some other wild animal you may need to quickly get away from, among other uncommon, yet possible, scenarios.

It's even nice to quickly release your pack after a long march. Saves you from having to un-cinch your backpack (the tighter it sits to your body during a hike/march, the more comfortable it generally is).

What kid of lathe and tools do you have ?
Mrballeng (author)  austin1116121 year ago
Here's the link for the lathe
http://www.harborfreight.com/7-inch-x-10-inch-precision-mini-lathe-93212.html

My tool are a mismatch from different places including harbor freight.
Lots of work.
3366carlos1 year ago
very nice.
Stoval1 year ago
Way smart idea!
Mrballeng (author)  Stoval1 year ago
Thanks! Nothing earth shattering. Just a fun little lathe project.
Mr.Sanchez1 year ago
Awesome !! Thnks for share .It`s very usefull.
carlos66ba1 year ago
Wonderful idea and very well made. Question: for those unfortunate souls without a lathe, can one alsu use a simple al rod (not nicely machined)?
Mrballeng (author)  carlos66ba1 year ago
Of course. You could even use a section of coat hanger wire. It works the same.
neo716651 year ago
Most hardware stores have pins like that but in steel.
Breygon1 year ago
this is brilliant. thanks for posting. getting tangled in kit is something I have thought of. unlikely as it is, if it ever did happen it could be vital to detangle as quickly as possible.