2007-09-09 06:07:52 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
You could make it out of any heavy object hanging on a string.
If you want a professional quality one you would need to have access to a lathe for turning and a brass cylinder. Taper one end of the cylinder to make the bottom point. Drill a center hole in the other end for a screw eye that you can hang the plumb bob from. That is now as accurate as the store-bought kind.
2007-09-09 06:22:47 · answer #1 · answered by Rich Z 7 · 1⤊ 0⤋
I bought my last one at Ace Hardware.
A heavy duty tapered (to a point) metal cylinder on a heavy duty string.
The hard part is using the plumb bob because if it touches any part of what you are plumbing, it will be thrown off a true vertical line. I used to put a 2" long nail or brad into the top of what I needed to plumb, and would attach the plumb line to the nail to keep it hanging free.
2007-09-09 14:05:22 · answer #2 · answered by gatorbait 7 · 0⤊ 0⤋
All you really need is a plastic protractor that has a hole at the center, a string, and a rock.
Tie one end of the string to the rock, and the other to the hole in the protractor (so that the string pivots directly at the hole). Then hold the protractor vertically so the string hangs across the measuring marks. Now you can align the protractor's straight side with various things and find the angle they're tilted at.
2007-09-09 13:14:06 · answer #3 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
Tie a lump of Lead on the end of a string it will hang Vertically downwards enabling you to 'Plumb the Depths'.
2007-09-09 13:14:17 · answer #4 · answered by Norrie 7 · 0⤊ 0⤋