BIM As Built : Laser Technology

Speaking to a colleague from Europe who moved to the US because he stated, ‘there’s a survey shop on every corner in the UK, I could only find a handful here.’    However, that’s changing.  HDLS, high definition laser scanning is starting to take off, especially now that the GSA issued the laser scanning awards.  Additionally, more and more people are reworking existing assets / adaptive reuse projects so it is becoming more and more important to get the existing conditions data.  While everyone is waiting for the day we can walk around with a magic wand and wave it around the room we have to build a bridge from here to there.  HDLS in creating a 3D database is an excellent start.  I believe HDLS, from firms like Leica and FARO,  performs fantastically in certain circumstances such as inaccessible or difficult geometry, exposed MEP intensive projects, however, for typical conditions especially the interior of buildings it might be akin to using a sledgehammer rather when you need a fly swatter.   We, PointKnown, have been developing a product that bolts on to Revit and takes laser range finder data and builds objects as you measure.  This has been defined as PPLT (Point to Point Laser Technology).  It allows a surveyor to move quickly and accurately from room to room or object to object.  We do not intend for it to usurp laser scanning but rather augment current surveying teams, allowing them the most flexibility depending on the situation.

Most importantly is to define the deliverable and type of model needed for the project.  This can start at the basic architectural model using generic library items to, well , anything goes but most of our clients want dimensionally correct space and then they apply the material and details they need as that is what they want to control.

We are now accepting people and firms into our public beta that starts January 2010, if you have any interest please feel free to contact us at and put beta in the subject line.


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