Re: home made bed slide..
^^^ ya, that was a great inexpensive solution for bearings. skateboard truck bolt/nuts also work perfect for repairing all the fold up style chairs, tables, and beds once the rivets blow out too. I keep a small bag of them with the camp gear.
that bed setup was a good idea. ive had buddies make similar setups, but that one with the huge drawer takes the cake for design.
"understeer is when you hit the wall with the front of your car, oversteer is when you hit the wall with the rear of your car, horsepower is how hard your car hits the wall, and torque is how far your car moves the wall."