Saturday, June 11, 2011

Laser precision in construction.

Modern technology has already made more efficient hand tools - chisels replaced the hammer, electric drill replaced the mechanics in the theodolite and levels appeared electron-computing modules, and conventional construction string, squares and plumb lines, gradually give way to laser devices ( on LP). Modern technology has already made more efficient hand tools - chisels replaced the hammer, electric drill replaced the mechanics in the theodolite and levels appeared electron-computing modules, and conventional construction string, squares and plumb lines, gradually give way to laser devices (hereafter LP). On the laser devices for construction and finishing. Laser plumb and level, laser level and rotating laser, laser marker and the builder, laser tape measure and range finder - all these titles are of relevance to modern and effective tools used by land, building construction, interior decoration, installation of communications. These devices allow you to build a base horizontal, vertical or inclined plane, directly on the wall, floor, ceiling and monitor them visually or by means of special receivers and leveling rods. LP problem is quite smooth laser beam was successfully replaces the conventional plumb bob, spirit level, square metal, building string or cord, and even roulette, especially at distances up to 200 meters. How much easier and more accurate to build a wall, column, set the door frame or window when you can visually control the deviation from the vertical by passing them on the red line of the laser beam, as if tied to the vertical, and with the help of a laser tape measure, measure the distance and allowing to reach areas . LP to quickly and conveniently check the horizontal and the overall level of the foundation, design slope water pipe or drain, to plan the land slopes, install a fence and siding, to control the clutch brick and tile, to produce markup beacons for mounting ceiling and fills the floor, mounted telescopic gates roof, to help everyone, without exception, do their job effectively. How do the LP Many are already familiar with a laser pointer, playing with which children are often sent a red dot laser for items. This principle is used with laser devices for projection horizontal, vertical, inclined plane, or point directly to the work surface. Most evidently it will show pictures: Inside the device is usually a laser red LED, with a capacity of about one mW and a wavelength of 633 - 670 nm, referring to the second class of lasers, assume the absence of additional protection for the eyes. The LED is quite rugged, and with the aid of an electronic circuit interacts with the control panel and receiving power. In order to focus the LED radiation to a point or a line that uses optical elements of different shapes (cylindrical, conical, etc.) Laser tube can be rigidly fixed inside the device or in a free-hanging condition for self-regulation. In the self-leveling LP uses the "pendulum principle" - the radiator is suspended inside the device and installing the surface itself is aligned with respect to ground level and provides precise horizontal, vertical or angled projection beam. To reduce the time balancing the pendulum transducer is often used magnetic cushion formed embedded in the bottom of the device magnets. In more complex LP uses a system similar to a gyroscope, which uses electronic controls embedded inside the device servos the radiator, allowing it to equilibrate, and even set the desired bias. Devices with self-balancing emitter are often equipped with an automatic notification of critical tilt housing (usually more than 5% from the horizontal) which allows to avoid erroneous projections and measurements. Simply put the device on a relatively flat surface and turn - the device automatically compensates for the radiator on the horizon for a few seconds and ... Getting Started! Inside the laser level laser level (hereafter LU) emitter is fixed with respect to alcohol bubble and can design a point far away at the same level and in the same vertical plane, performing the role of both the level and stretched strings between the level and the point of projection. Level Stabila 70LJ with one transmitter can be purchased at a price of 2,250 rubles. One of the most popular models LU Stabila 70LJ P + L is produced by German company Stabila and has two perpendicularly placed the radiator, making it suitable for a wider range of works (Figure 1). Another novelty is represented on the Russian market by the German company Geo-Fennel - a protractor MultiDigitPro with integrated laser transmitter and digital protractor / level, allowing both design point level, measure the angle and the deviation of the measured surface from the horizontal (Fig. 2). The company also produces Geo-Fennel Laser Level Pocket / cord Long Linner for fixing flush fixtures shelves, pictures, etc. Its simply leaning against the wall and he will design an LED on it a straight line at right angles to you - simply rotate the device to the desired angle (Fig. 3). Laser builders horizontal and vertical plane (the BOB), the palm among LP finishing hold appliances to build the different versions of intersecting horizontal and vertical beams at an angle of 90 °. Simply the intersection of vertical and horizontal forms on the working surface "laser cross" two red lines of the projections. Each model BOB can build: from one to four vertical lines (for the projection of the planes immediately at 4 walls of the room), one horizontal line to sweep up to 360 ° (close to the wall projection of the horizon line and cross it with a vertical projection) projection point up to the ceiling (the upper laser plummet) projection of a point down on the floor (lower laser plumb) Laser builder plane BOIF APL-1 The main producers of LPP in Europe are the company's Geo-Fennel, Stabila (Germany), Agatec (France), Zircon, Trimble (USA). Most of the LLP, sold in Russia under other brands or products are replicas of those companies (in another building or another color) and are made to order (usually more expensive), or manufactured in China or Taiwan, often with a lower build quality. But in China there is a high-quality instruments. This is a LLP, which is issued by Beijing Optical and Mechanical Plant (BOIF) - APL-1, proposed to the Russian market a little more expensive 4100 rubles. It is made from high quality plastic and has a rubberized outer sheath, which protects the device during a fall. LLP can design sets of three lines - one horizontal and two vertical line projected on the wall at an angle of 90 ° from the center of the emitter device. This device is used for the simultaneous partitioning of two vertical walls, angled 90 °. APL-1 is one of the most affordable, and its emitter is closed black plastic plate with slits for the Rays in the form of a cross, which makes the glass less vulnerable to accidental bumps and drops than similar devices of Triax Series LS. Scan projection of the laser beam is limited to fixing the pendulum and the lens of the emitter. This means that the projected one-way laser plane is limited by the horizontal circle with an angle of 0-90 ° (depending on the model of the device) and can be increased using additional emitters perpendicular to one another. When you turn the unit around its axis can lead to a shift in the horizon, if the LLP is not equipped with a special swivel mount with a limb and handle fine-tuning, such as the models FL-50 Multi-Linner and FL-50 Plus German company Geo-Fennel. Incidentally, the latter gives a scan with an approximate angle of 270 ° horizontal and vertical lines, and 360 ° the second vertical line, placed perpendicular to the first, making it virtually inaccessible to competitors. Gon laser (the builder of a right angle) laser angle belongs to the category builder of planes with a fixed transmitter and projecting two lines at an angle of 90 ° relative to each other on the floor or wall (work surface). He is a good tool for monitoring the working axes, and is widely represented on the Russian market with two models - Square Linner German company Geo-Fennel and LT-80 companies Triax. Unfortunately, this device can not replace the plastic crosses, to withstand the seams between the tiles in one dimension and is only used to control the working axes (put to test and then removed at the time of laying the next tile many times during the work). Model LT-80 is too heavy (weight 3.4 kg), to keep her place, lift or remove for inspection, working with a claimed accuracy of 4 mm by 10 m and more than three times as much as Square Linner (claimed error of 3 mm to 10 m), which makes the appliance company Geo-Fennel more practical. Multi-beam laser tool from the name of this group of laser builders clear that these devices design on the surface of laser points and are intended to mark the holes are perpendicular to each other on multiple surfaces. In the most advanced models of this type uses a system of five points: two vertical upward and downward from the device, two horizontal right and left and one right in front of the device that allows you to mark any frame structure located on the right, left, top, bottom and front of the unit. Laser builder points Multi-Pointer While the Russian market represented three similar device - RT-7610-5 (Robotoolz), PLS-5 (Pacific Laser System) and the Multi-Pointer from the company Geo-Fennel. According to the specs the most accurate is the German Multi-Pointer (Fig. 4), and included in his set of multifunction mount (allows you to mount the unit to the wall with the tripod screw 5 / 8 "or 1 / 4" wooden surfaces on nails or metal at a magnet), leads him forward. It should be noted that when the price analogues in the region of 12-13 thousand rubles, the price of the Multi-Pointer looks more attractive. Laser Level (Builder full horizontal) Laser builders horizontal or vertical plane with a radius of projection of 360 ° are called levels, which are almost completely replaced the builders of planes of this segment of the laser builders. After laser Builder with suspended inside the compensator can only give a horizontal projection at the same time, almost any laser level can be used both horizontally and vertically, often operate in different modes (point, line and laser cut) and use it to receiver and / or remote control. Laser Level Agatec M-10 One of the last builder in the Russian market is a builder PLS-360 (Pacific Laser System) with a value of more than 14 thousand rubles today. Its direct competitor is the Laser Level M-10 French firm Agatec. At a cost of less than 9,000 rubles, this device can be: used to build both horizontal and vertical plane, working in point mode, a closed line and a laser segment, operated by remote d / y, which is supplied, mounted on different surfaces and to the rafters with built-in multi-mount; define an inclined plane, the closest analogue of this leveling is a nearly exact replica of the company with Triax model LT-60 at a price almost 40% higher than the cost of the French Agatec M-10. How to choose the instrument on the Russian market, the most widely represented the German company Geo-Fennel, Stabila, the French company Agatec, Beijing Optical-Mechanical Plant, which indicates the strong demand and high popularity is on the LP data producers. When choosing a laser builder should consider the following aspects: It should be complete and clearly define the tasks for which you need a laser Builder; Our consultants can help you with searching and processing information about appliances, visit our trade showroom and look at the device itself, do not skimp on the universality to the detriment of the quality of work; Do not buy appliances bad external execution from an unknown seller, should give preference to well-known brands of equipment; Do not overpay extra money for more expensive European instrument, if there is an analogue, produced by famous factories in China - this will save you money, will learn to work with the device and will be a wonderful gift to your friend when you go to buy a more prestigious and advanced model of the European manufacturer. Check the accuracy with which the device builds a plane. Very often, especially for laser levels, high accuracy can cause a limited number of functions; Do not forget that devices operating with the receiver, have a radiator with a different wavelength that can be the cause of a brighter beam of radiation. A laser beam is best seen in the special glasses that can be purchased from the seller of laser builder, they can really help you in your work for the small reward that gets the provider; Remember - the accuracy is never too much! This will save you time, money and frustration, as well as make a good impression on the customer. Source: http://www.vashdom.ru/articles/geototal_1.htm

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