My girlfriend and I have recently started geocaching and we both really enjoy it. We've seen/been to some neat places that we otherwise would have just passed on the road or would have never visited unless we were hunting one of these things down.
We have also been stumped by more than a few of the more difficult ones known as "nano" caches. these things are nothing but a tiny canister with a magnet and only enough space inside to hold a rolled up piece of paper to log your visit, and people get really clever when they hide them. So I decided to try my hand at making one of these evil little things.....only more evil!
Step 1: Materials
This is a pretty cheap project to make, all you need are some hardware bits you may have lying about and some simple tools. the most expensive material needed was the nano cache itself, cost about $10 at my local R.E.I.
-A bench vise
-A pneumatic cutoff wheel (and air compressor of course, or a hacksaw)
-Some J.B. Weld
-A 1/2" diameter by 2 1/2" hex bolt ( I chose 2 1/2" to give me some material to play with)
-A 1/2" Nut that fits on the bolt
-Two 5/16" internal diameter washers (these are the exact diameter of the nano cache)
-One 1/2" internal diameter washer (This will fit around the hex bolt)
-A small rare earth magnet (I scavenged this off one of my girlfriend's old name badges from her job)
-A metal file
-Toothpicks & something to mix the J.B. weld in