This is because their intended use is for representational diagram of model components such as assembly families and opening types (windows & doors). Create a Drafting ViewĪs mentioned before, Legend components are only usable inside legend views. Not every project has the same level of commitment to a BIM forward lifecycle approach, and simply dropping in a quick sketch makes the most sense when deliverables end at issued construction drawings. The final example, deliverables, is the main driver for drafting views.

Not every firm has the same level of experience/adoptions and simply sticking with what is familiar, a 2D drawing, can help moving things along instead of learning to adopt a more 3D BIM modeling approach. The next reason, experience, is a common example. Using drafting views increases the speed of drawing production by either using existing details from either in-house or manufacturer details, or the user does not have time to generate a fully detailed unique drawing modeled for a project. This is useful for three reasons: time, experience, and deliverables. In essence, drafting views are separated blank views. Conversely, drafting views are not linked to model geometry which allows the user to generate more detailed drawings that will remain static when a model is updated. A typical callout, elevation, or section view shows modeled geometry which a user can modify or add more information to the drawing on top of the existing model that can sync changes with the updated model.

Revit drafting