So we're now pragmatically advised to do just as you say - do our 2D details say 1:5 by manually 'tracing' them over 2D section-cuts extracted from the 3D master model, which is now only expected to include the level of detail that you'd normally find on a say 1:50 schematic/layout drawing.
This SBM ideal has been steadily abandoned over the 20+ years since, for several practical reasons - SBM is never mentioned today and today's BIMs do not embody that ideal. Thus by definition the working drawings could never get out-of-step with the 3D master model.
It seems BricSys can move faster than most, so it could be sooner rather than later.īack in BricsWork (1993 apx) days and even earlier, the ideal vision was Single Building Model (SBM) in which everything would be modelled in 3D, from which 2D working drawings would be extracted as section-cut views, and continually automatically updated as the 3D model evolved. AFAIK none of today's BIMs tackle this satisfactorily.
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