feeling a bit off axis? build this level out of a couple of nuts and bolts, clear tubing, and olive oil.
Step 1: Parts Layout
+ a few inches of clear plastic tubing (3/8" inner diam., 1/2" outer diam. ~2.50$/roll @ homedepot)
+ two matching nuts and bolts that fit snuggly into clear plastic tubing. (7/16" worked well)
+ drill bit big enough to send string through (1/4" is fine)
+ a few nails
+ hot glue
+ olive oil (or any liquid, really; i chose olive oil for it's colour and viscosity)
+ a piece of wood that you feel is level (and pretty).
Step 2: Assembly, pt. 1
Place a nut onto the bolt. put some hot glue on the end of the bolt and put the bolt into the plastic tube. The bolts must be able to seal liquid. a snug fit + hot glue should do the trick.
Step 3: Assembly, pt. 2
put some oil into the glass tube. You want to add just a litle less oil than will completely fill the tube after the next bolt goes in. Eyeball well, and then pay attention to how deep you add the second bolt. The excess air in the tube will be the air bubble that makes the level useful.
Step 4: Assembly, pt. 3
put a nut on the second bolt, put hot glue on the tip, and insert into the tube. now, the leveling mechanism should be complete, ready to be attached to the base.
Step 5: Assembly, pt. 4
get your level piece of wood and eyeball where-abouts you want to attach the leveler. drill holes in the wood so that you can loop string through to tie the bolts down. A nail next to each set of string-holes will be helpful, too.