12/16/2023 0 Comments Plumb bob knot![]() ![]() Some bobs have pointed tips that can be bent by repeated use or abuse if the point on yours is bent or out of alignment, replace it. Excavation and foundation contractors rely upon the plumb line, and constructing a chimney the tool can indicate whether a flue is running true vertical or veering off plumb. Surveyors sometimes use plumb bobs for lining up points or transferring them. The plumb line in one place can be used to sight an object in another - a pipe, for example - for plumb. Once it is hung and still, the top and bottom points can be marked and used as guides. For example, you can locate fixtures or decorations in relation to an object or surface below (or above) using the plumb line. Solid brass plumb bob with lacquered finish to resist corrosion. A spirit level will also accomplish those tasks, but some jobs are much more easily done using the tool. The ends come out on opposite sides so it should keep it pretty vertical. The plumb bob is useful in establishing vertical for a wall in construction or a doorjamb when hanging a door. You could tie a Two Strand Matthew Walker Knot with the screw going through the center then tie the ends together above the screw. Precision-turned tip Slack adjuster allows quick changes in cord length Special cavity for cord knot Tip replaceable if worn or broken Self-centering. Start by selecting a weight for your plumb bob. As mentioned earlier, you will need a small weight, a sturdy string, a small hook or screw eye, scissors, and a measuring tape or ruler. (Note that the line must be hanging free to get an accurate reading.) The first step in making your homemade plumb bob is to gather all the necessary materials. The weight, or bob, is then allowed to swing freely when it stops, the point of the bob is precisely below the point at which the string is fixed above. To use the tool, the string is fixed at the point to be plumbed. Thread the other end through the exterior hole and back through the finial, pulling it until the knot is snug against the brass. ![]()
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