The other use of lasers in machine control is in a system unique to Topcon, called Millimetre GPS or mmGPS. Certainly more accurate than the naked eye and a stringline, but not what civil contractors would expect for survey-grade positioning accuracy.Дў) Topcon Millimetre GPS. However, they are there as a guide to the operator and are only suited to more basic earthmoving tasks. Yes, it is true that all receivers measure in millimetres, because they have arrows showing you roughly how far you are from grade (usually in 5mm increments).

You may hear these receivers referred to as millimetre accurate, which can be misleading when it comes to machine control and earthmoving applications. These also help project managers and engineers to track a projectвЂ™s progress relative to design and tolerances, but they donвЂ™t work on machines. These include remotely piloted aircraft (RPAS) used for aerial mapping and modelling, 3D laser scanners that are used to create a model made up of millions of points (point clouds) and other complimentary solutions such as deformation monitoring platforms that measure minute movements in the terrain or structure. In addition to the core trio of lasers, GPS and total stations, there are some new(er) kids on the block that can be grouped into вЂmass dataвЂ™ solutions. The most common tools used by contractors to do this include laser levels, GPS and total stations, which can be used by surveyors for levelling, set out and as-built checks as well as on earthmoving machines to guide the operator to grade. In its simplest form, positioning technology is anything that assists machine operators, surveyors, engineers and project managers to match the physical landscape or structure to the digital (or, gasp! paper-based) project design. The top 3: Lasers, GPS and Total Stations With so much choice, including factory fit options from machine manufacturers, aftermarket options by different technology companies and various terms and descriptions that are not used consistently across the industry, it can become a mine field to uncover the right fit for your project. If you would like to now about this I can get something together for you.Positioning technology is a broad term that encompasses a lot of different options for the civil contractor. The localisation procedure is not cover by the attached document. The majority of jobs we use GPS on, we localise the job using a Rover unit prior to installing it in the Grader Control Unit. The linework is transferred to provide visual guidance to the operator, but can also be used for stakeout and utility avoidance. The surface is exported as triangles in a dxf file as the XML file exchange results in unwanted triangles in Topcon 3D Office due to the way Civil 3D exports surfaces to XML. I have tried to exchange corridors, but it keeps crashing Topcon 3D Office when I import the xml file. Please note the attached procedure is used to export alignments, surfaces, linework (lines and polylines) and survey control. Speak to you Topcon dealer in order to get hold of Topcon 3D Office. I have put it together primarily for our staff to follow, I hope it helps you.

We use civil 3d and Topcon GPS machine control where I work.ДЄttached is a procedure that I use to export the design from Civil 3d and Import it into Topcon 3D Office for use in Topcon machine control gear. Be sure to tell the trainer if you need to model roads with superelevation as that will add another few hours to the class. You probably are going to want custom training so you don't go to a training center and sit there creating parcels and adjusting traverses when what you need is the ins and outs of surfaces, grading, and probably corridors. Discuss that with the training firm before agreeing to a course. If you're comfortable around the computer and AutoCAD, aВ one-to-two day class should suffice to prepare you to create your own models, depending on the complexity of the projects. That's good for them, but not necessary for you. One thing to watch for: Some firms who specialize in training will try to force a multi-day class down your throat. This forum is not really meant for making business connections, so if you want to talk further about this, you can contact me outside the forum, by telephone 530.221.2994 or email there is an Autodesk classifieds new group where it is appropriate to post requests for services or to offer services. Next would be a remote Autodesk reseller or consultant who can work with you via an internet connection and a telephone. They will have staff available for consulting/training. The firstest place to look is to your local Autodesk reseller, one who specializes in Civil applications.

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