I don't know how it happened... but one of the hinge pins on my recycling bin disappeared. I suspect that my son may have had something to do with this.
In any case, I had one pin left, and own a 3d printer...
This resolution and infill combo seems to be totally sufficient for the PLA I printed with. Time will tell if I should have gone with more infill, but if you do 4+ shells, and 4+ top and bottom layers, the amount of infill doesn't matter too much, since the walls of the thing aren't THAT thick. It's effectively solid.
First things first, I whipped out the micrometer and measured the hell out of the OEM pin.
Once I had a good set of measurements, I opened up Autodesk 123D Design, and started laying down the parts. The flare on the shaft of the pin, near the cap, seemed like it flared out a little, so I replicated that using stacked cones.