Laser Scanning and 3D models As built verification for the masses

Laser Scanning and 3D models - As built verification for the masses!

One of the main uses for laser scanning in construction has been checking your 3D CAD and BIM against the real world situation, to check some refurbishment work will fit or the next trade can install their HVAC run rather than turn up onsite and not be able to work. It has long been possible to do this within Navisworks, and more recently with the introduction of Recap, also within Revit. Both of these do the job, but are still in the hands of the specialists.

Towards the end of last year the Recap team snuck out quite a big update, allowing you to view Navisworks NWD models alongside the 360° panoramic Realviews within Recap. These are the easy accessible way to access the point cloud, think of Google Street View in your laser scan!

Video: courtesy of Faro and BAM Construct who worked together on seeing what this new feature could do on a real life project.

So what does this mean? Well you can bring your files from over 50 different file formats together in Navisworks (or via BIM 360 Glue), and save out an NWD file. This can then be “Attached” in Recap (make sure the scan and model files are on the same coordinate system), whenever you then go into one of the Real views, you’ll be able to see the models alongside the images captured by the scanner with correct depth being applied (so items in front of the model are shown as that).

Tips related to Navisworks and Recap Realview

  • To check the coordinates in Navisworks open the Measure dialog (View > Window > Measure Tools) and when you make a measurement the coordinate will show.
  • To check the coordinates in Recap you should see the coordinates in the lower left corner as you hover over the view.
  • To change the coordinates of the Navisworks model use there are a number of ways, the Measure Tool is my preferred method
  • To change the coordinates of the Recap scan add survey points
  • Learn more about Attach NWD in Recap
Reference
Mullin, L. (2017, Jan 09). Laser Scanning and 3D models – As built verification for the masses! Retrieved from Beyond Design: http://beyonddesign.typepad.com/posts/2017/01/as-built-verification-for-the-masses.html

 

 

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