Keychain box

The contents of my pocket I carry a lot of stuff in my pockets. This is the contents of my left front pocket. I am tired of sounding like a coffee can full of nuts and bolts rattling around every time I take a step. My keys rattle against each other, the little Altoids tin, the pill canister, my knife, etc. I took to carrying the Altoids Smalls tin as a catch-all box due to it’s small size. I’ve had in my pocket for probably 4 months now, so it’s getting pretty tired looking.


Keys and an Altoids Tin I drilled a couple of holes in each corner of the lid of the tin. I picked the lid as the keys will cover the embossed Altoids name. Space the holes as near as you can to the outside but leaving a space for the base to fit inside of the lid and not hit the nuts. I used a couple of 1/2″ #6-32 machine screws and nuts to bolt the keys to the lid. I would probably use some of those Chicago Screws as they are called if I had them. I faced the teeth of the keys in, so they didn’t snag in my packet. I use the keys in a specific order, so they are ordered outside in in the order of use. I thought about using thin plastic spacers, but it doesn’t seem to be needed for now. I just rotate the keys out that I need. There is enough clearance around the keys that they are easily usable.


Keys bolted to an Altoids tin as a keychain You can see that the small tin, with 8 keys bolted to the top isn’t any thicker then my Victornox Cybertool pocket knife. Granted, that’s a rather large knife to carry every day.


My keychain can now hold stuff I didn’t want the keys falling off my tin. I super glued the nuts to the bolts and to the tin as I don’t have any lock-tight. A Dremel will take the head of the bolt off if I can’t break the glue with a screwdriver & a wrench.
I put my headphones adapter for my cell phone in the tin. I also carry a 1 gig USB memory stick in it that I made a custom, waterproof housing using some casting resin.
I am going to put a small bit of cloth in the bottom and lid to quite the rattle down. I will also put in a cotton ball to fill the space and help silence the contents of the tin as well.

I am going to see how long this tin key-chain lasts.

Cutting the long bolts down to size.

I couldn’t find bolts that where 5/8ths, or 7/8ths or 9/8ths, so I had to make them.

Wire cutters with an extra rope handle grip From what I have found the best tool for the job is an electricians wire cutters. I am not fond of this style of wire cutter for doing electrical work, but the built in bolt cutters are the handiest! You can see that I “modified” this brand new pair of Channel Locks brand wire cutters with a extra padded handle. I knew I was going to be cutting a lot of bolts and this makes it easier on the hands.


Wire cutters cutting a bolt You thread the bolt into the threaded side of the bolt cutter.


Wire cutter cutting a bolt. I wanted to cut 1/8th of an inch of the bolt off. This is about the thickness of the tool. I found that if I run 2 threads out past the end of the tool, I get the perfect length.


Cut bolt After you cut the bolt, you have to unthread the bolt from the cutter. This acts like a die and cleans up the threads on the bolt.

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Fish Feeder Final Assembly

At last, it comes toghether!!!!
Fish Feeder Final Assembly - lower ,ounting boltsHere you can see the lower stand-offs. They are simply bolts and nuts. I have the bolt tightened down and then have a second nut floating part way up the bolt to the height I need to get the servo to sit where it should. You can see in the photograph the double nuts on each lower bolt.

Fish Feeder Final Assembly - servo intalled with the support bracket visableAs all my good friend know, I like to over engineer things. I truly only needed the lower bolts, as the servo wanted to tip inwards. This tipping would have held the clutch halves together well enough. Not willing to leave well enough alone, plus, I made a special trip to Walmart on Easter Sunday, I added in the top bolts, plus a bracket to hold the battery case back on (I had cut tab and the thing-that-the-tab-goes-into off the battery case cover).

Fish Feeder Final Assembly - the servo sticking out the back even looks kinda coolHere the servo is mounted into the housing. It doesn’t look to bad, now does it? A little bit of tweaking the tightness of the bolts to get every thing squared up, and I should be done! Posted by Picasa