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Understanding families

From: Revit Architecture 2011 Essential Training

Video: Understanding families

The subject of creating Revit family content could take an entire training series in itself. However, a Revit essentials class would not be complete without at least some coverage of topic. So with this in mind, we are going to use this chapter to go through the process of building our own custom Revit model family. There are few key steps that you want to keep in mind when you're building your own families. So let's kind of walk through the process. First, you want to plan. Plan carefully. You need to know what you want your family to do. Don't just dive in without a plan. Think about it. Maybe take some notes, do a little sketching, but know what you want your family to do.

Understanding families

The subject of creating Revit family content could take an entire training series in itself. However, a Revit essentials class would not be complete without at least some coverage of topic. So with this in mind, we are going to use this chapter to go through the process of building our own custom Revit model family. There are few key steps that you want to keep in mind when you're building your own families. So let's kind of walk through the process. First, you want to plan. Plan carefully. You need to know what you want your family to do. Don't just dive in without a plan. Think about it. Maybe take some notes, do a little sketching, but know what you want your family to do.

What behaviors you want it to have and how you want it to act in the project. Number two, use a good template file. There are several template files that ship with the product and each one has certain behaviors that are built-in. Those behaviors get imparted to your family when you choose the template. So make sure you choose carefully and get the right templates, so you get the right behaviors. The next thing you want to do is add reference planes. Reference plane set up the form and structure of the overall family and define its geometric limits and characteristics.

So it's pretty critical step. You want to think about those carefully and get them laid out carefully so that the geometry behaves the way you expect it to behave. After you have got the reference planes, you want to add parameters and constraints. Now they both do similar things. They add the smarts to your family, but they do it slightly differently. A parameter is a bit of smarts or a rule that the user can interact with. So the user can actually change that parameter in the project environment later, change the value of that parameter, I should say.

A constraint is locked-in design intent. You lock that in and the users cannot change it in the project environment. So you're basically making that a permanent behavior that they have no impact on. Once you've got all that sort of framework built and established, you need to test everything and make sure it's behaving the way you expect. Revit calls this flexing the model. So make sure you flex and make sure you flex often. Once you've got all that and it's flexing the way you expect and everything is working correctly, then you can finally add some geometry.

You add your geometry. You attach it to the reference planes, which will in turn be driven by the parameters and constraints. And then what do you do? You flex it again because you want to make sure that everything is working exactly the way you expect. Once you've got everything hammered out and working the way you need it to work, you load it into a project, and that's the final test. So with that in mind, that's the best basic overall process, let's go ahead and build our first piece of Revit family content.

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Revit Architecture 2011 Essential Training

81 video lessons · 12664 viewers

Paul F. Aubin
Author

 
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  1. 1m 59s
    1. Welcome
      1m 27s
    2. Using the exercise files
      32s
  2. 13m 45s
    1. Introducing building information modeling (BIM)
      3m 0s
    2. Working in one model with many views
      5m 51s
    3. Understanding Revit element hierarchy
      4m 54s
  3. 47m 31s
    1. Using the Recent Files screen and the Application menu
      3m 21s
    2. Using the Ribbon and the Quick Access Toolbar (QAT)
      5m 3s
    3. Understanding context ribbons
      3m 0s
    4. Using the Project Browser and navigating views
      7m 37s
    5. Using the Properties palette
      10m 1s
    6. Selection and modification basics
      10m 27s
    7. Accessing Revit options
      8m 2s
  4. 42m 18s
    1. Creating a new project
      3m 26s
    2. Understanding the importance of template files
      5m 7s
    3. Understanding project settings
      6m 9s
    4. Opening and saving projects
      9m 9s
    5. Adding levels
      5m 0s
    6. Adding grids
      8m 41s
    7. Adding columns
      4m 46s
  5. 58m 21s
    1. Adding walls
      8m 39s
    2. Using snaps
      6m 39s
    3. Understanding wall properties and wall types
      7m 24s
    4. Locating walls
      7m 34s
    5. Using the modify tools
      7m 33s
    6. Adding doors and windows
      6m 37s
    7. Using constraints
      4m 47s
    8. Adding plumbing fixtures and other components
      4m 8s
    9. Using Autodesk Seek
      5m 0s
  6. 50m 52s
    1. Working with DWG files
      7m 51s
    2. Creating topography from a DWG link
      7m 45s
    3. Understanding CAD inserts
      6m 8s
    4. Using import tips
      4m 6s
    5. Creating a group
      9m 20s
    6. Working with Revit links
      9m 3s
    7. Managing links
      5m 51s
    8. Understanding file formats
      48s
  7. 1h 2m
    1. Working with floors
      8m 37s
    2. Working with footprint roofs
      7m 13s
    3. Working with extrusion roofs
      6m 0s
    4. Roof modifications and examples
      6m 27s
    5. Working with slope arrows
      6m 17s
    6. Adding openings
      8m 13s
    7. Working with stairs
      7m 41s
    8. Working with railings
      4m 29s
    9. Working with ceilings
      7m 36s
  8. 35m 52s
    1. Creating a custom basic wall type
      6m 10s
    2. Understanding stacked walls
      7m 31s
    3. Adding curtain walls
      6m 50s
    4. Adding curtain grids, mullions, and panels
      6m 44s
    5. Creating wall sweeps
      8m 37s
  9. 32m 43s
    1. Using object styles
      4m 45s
    2. Working with visibility/graphic overrides
      6m 52s
    3. Using Hide/Isolate
      7m 11s
    4. Understanding view range
      7m 40s
    5. Using the Linework tool
      4m 2s
    6. Using cutaway views
      2m 13s
  10. 21m 44s
    1. Adding rooms
      7m 4s
    2. Controlling room numbering
      8m 16s
    3. Understanding room bounding elements
      6m 24s
  11. 27m 2s
    1. Understanding tags
      7m 42s
    2. Adding schedules
      6m 50s
    3. Modifying schedules
      6m 8s
    4. Creating a key schedule
      6m 22s
  12. 48m 38s
    1. Adding text
      7m 21s
    2. Adding dimensions
      7m 26s
    3. Adding symbols
      3m 54s
    4. Adding legend views
      4m 42s
    5. Creating a detail callout
      6m 25s
    6. Using detail components
      9m 36s
    7. Adding filled and masking regions
      9m 14s
  13. 34m 39s
    1. Understanding families
      2m 37s
    2. Using reference planes, parameters, and constraints
      10m 46s
    3. Adding solid geometry
      8m 40s
    4. Adding void geometry
      4m 49s
    5. Completing the family
      7m 47s
  14. 32m 6s
    1. Adding sheets
      7m 58s
    2. Working with placeholder sheets
      4m 16s
    3. Outputting sheets to a DWF file
      6m 5s
    4. Exporting to AutoCAD
      5m 50s
    5. Plotting and creating a PDF
      7m 57s
  15. 25s
    1. Goodbye
      25s

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