Laser lowdown: 3 types of construction lasers



Construction lasers are an intrinsic part of the modern Australian construction industry. They carry huge benefits for levelling, locating high/low spots, installing tiles and more.

Let’s take a look at the different kinds of construction lasers in Sydney, and how they can benefit your construction business.

Dot laser levels

These laser levels are typically more cost-efficient than the upcoming two types of laser levels. They are also commonly referred to as “Plumb Levels” as they are used to check if the walls of a site are plumb, or oriented straight up and down.

Dot laser levels direct a dot in one direction, but this doesn’t have to be the one dot, as there are labels that produce dot laser levels that produce a cross or multiple dots – these are typically self-levelling dot laser levels.

For this to happen, the dot laser level has an internal pendulum, which is calibrated when it is in a neutral position and projects the beam at the proper angle via adjusting the laser component accordingly. Besides their use in walls, dot level lasers can be used for putting up fences or setting up foundations.

Line levels

Line levels produce either a vertical or horizontal beam and can be typically pivoted up to 180 degrees. This can be produced by using a prism to split the beam so a line is created from the center projecting outwards on both sides of the line level.

The beam can be self-levelling and can also come in a manner that they have to be levelled by the operator. As these levels produce a full beam, they are incredibly useful for projects that require spanning the whole length of a wall e.g. a cabinet that spans the length of an entire wall or more.

Rotary levels

Rotary levels are mechanically levelled using a motor and gyroscope that are in charge of levelling the beam in regards to its position on the earth. Rotary levels produce beams that go around in a full circle. They typically have an internal diode that is then projected onto a rotating angled mirror.

As the mirror continues to rotate, the beam continues to project in a circular shape. They are typically used as the beginning of construction to do things like determine if material needs to be removed or introduced for a level surface.

Certain circumstances exist when it can make it difficult to discern the beam, such as bright outdoor conditions or increasing level distance. This is largely due to the fact that the beam is projected over a circular, large area in contrast to a short, narrow focus.

A higher power rotary may be necessary when there is need for a wider circumference. These detectors can produce a longer range as they can detect the beam at a longer distance than the human eye.

However, these detectors can typically only extend the range by 1.5 times that of the eye, but there are newer rotary level models that don’t have a prism or mirror to bend the beam, instead they use a motor to move the diode around the center. This produces the same effect of creating a circle, except it carries a much further range over a greater distance.

They are essential to construction

Laser levels and their different models all carry their own unique applications that make them important on construction sites, whether it’s for levelling, installation, fencing or something completely different!

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