MBD vs LDD: A Comprehensive Comparison
Explore the differences between Model-Based Definition (MBD) and Limited Dimensioned Drawings (LDD), including cost analysis, observations, and defining methods as per ASME Y14.41 standards.
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Presentation Transcript
Model Based Definition (MBD) vs Limited Dimensioned Drawings (LDD)
ASME Y14.41 Defines Two Methods
Cost of MBD vs LDD Hours per drawing Ft
LDD vs MBD Observations Both methods are digital and model centric Electronic display is not 3-dimensional Hard-copy media in not obsolete Side-by-side detail views are valuable MBD annotations take longer to create MBD annotations are more difficult to read Model tree is not exactly a parts list Integrated configuration is valuable (e.g. drawing parts list) Parts list is incomplete without drawing (e.g. find numbers, flag notes) Most parts list changes require CAD assembly changes With LDD, You can have your cake and eat it too
