Plumb lines that you buy often have a pointed weight, making it easier to see and mark where the vertical position is. You can buy a plumb line very cheaply, or you can simply make one yourself using a length of string and a heavy nut (or other object) tied to one end. Level determination with an electromechanical plumb bob sensor is one of the most customer-friendly technologies due to its simplicity and comprehensibility. Provided the string or weight is not touching anything, the line will always hang perfectly vertical once it stops swinging. Plumb LineĪ plumb line, also sometimes called a plumb-bob, is simply a weight attached to a length of string, used to line up things like shelving, or brick or block walls, vertically. ![]() You can buy a kit including a self-levelling laser level, a tripod and protective case for around £30, which should be adequate for most DIY levelling needs.įeatures to look for include 360-degree rotation, cross line marker (shows both horizontal and vertical marks), and an adjustable base or tripod. Laser levels range in price from the relatively cheap to very expensive, and will include a range of features depending on the cost. A plumb bob, plumb bob level, or plummet, is a weight, usually with a pointed tip on the bottom, suspended from a string and used as a vertical reference. They have the benefit of providing a constant mark on a surface, without you having to hold anything (such as a spirit level). Laser levels are useful for a variety of tasks, from marking out the position of shelving in an alcove, to finding the levels for outdoor projects like fencing and paving. The base unit can normally be rotated easily, allowing quick and accurate marking of levels all the way around a room. Laser levels fire a laser beam from a base unit that can be made to sit level on a flat surface. Laser levels, once a very expensive tool used only by professional, are now available to buy fairly cheaply. ![]() When the level is truly horizontal or vertical, the bubble will be perfectly between the two marks. Each has an air bubble inside it, and marks on the vial to show the centre. ![]() You can even buy spirit levels with a laser marker built-in.Ī spirit level will have one or more clear vials (or bubbles) filled with liquid. Some spirit levels have a bubble which can be rotated to display the angle of a slope on an angle gauge. Possible features include multiple bubbles, a straight-edge ruler, a magnetic strip for working with steel, and even a digital angle display. You can find spirit levels in a variety of lengths (it is useful to have a mini level and a full length level), made from plastic or metal, and with a variety of features. If you do a lot of DIY, you will use a spirit level a lot, so investing in a good-quality level makes sense.
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