You might call it BIM for the masses, or you might call it BIMSight, as its developer does, but the deal is that a 3D modeling software vendor is now distributing a powerful, free viewer that users say rivals the for-a-price alternatives.
Tekla BIMsight is available as a 46.6-megabyte download from the company’s website. It will import DWG format files from Autodesk, DGN files created by software from Bentley Systems and Intergraph and the open format IFC files as well. Capabilities include combining models, running clash detection and generating markups and pdfs, all in the service of sharing models and collaboration.