Month October 2018

Tutorial: Components

Bansri Pandey 1 Comment

About Components

Components are those building elements that are usually delivered and installed on site – such as furniture, plumbing fixtures, lighting, etc. Components are loadable families, which need to be loaded in the project from your content library.

There are free standing components such as furniture or equipment placed on a floor/level. There are also host-based components which are dependent on a building element that acts as a host such as a wall lamp that has wall as its host. When a wall is moved/deleted, the dependent component is also moved/deleted. Usually, the wall, floor, level/work-plane, roof, ceiling or a face of an object work as a host for components.

Tutorial Objective:

In this tutorial, you will learn,

Sample Problem:

Add 3 instances of Furniture_Sofa.rfa and 2 instances of Plumbing_WC.rfa components to the Ground Floor layout as shown in Fig 1.

M2 Fur Tutorial
Fig 1. Placement of components in the Ground Floor layout of the sample project

Sample Files required for this tutorial:

If you do not have the following files, please download them from here.

  1. “TutorialComponent_Input_LearningRevitOnline.rvt”
  2. Component Family file: “Furniture_Sofa.rfa” and “Plumbing_WC.rfa”

Solution:

  1. Open ‘TutorialComponent_Input_LearningRevitOnline.rvt’ in Revit. This project file already contains doors and windows modeled in the Ground Floor levels.
  2. Navigate to the floor plan of  “00 Ground Level”.
  3. Load the component families “Furniture_Sofa.rfa” and “Plumbing_WC.rfa” into the project.
    • Click Insert tab -> Load from Library panel -> Load Family -> Navigate to the folder where above families are located on your computer -> Select them -> Open.

  4. To place a component:

    • Go to Architecture tab -> Build panel -> Place a Component
      • Alternatively, use “CM”as keyboard shortcut.
    • Select the type for the Furniture_Sofa family from the Type selector.
    • In the drawing area, place the sofa as shown below. Press Spacebar to change the orientation of the sofa. Do not worry about the exact position at the moment which can be adjusted after the sofa has been placed.M2 Fur 1
    • Click Esc twice to end the Components tool.
  5. Click on the Sofa that you have placed. Temporary dimensions will appear. Use these dimensions to locate the sofa 0.2m away from the edge of the wall behind it.M2 Fur 2
  6. Now, position the sofa exactly in the middle of the Grid 5 – 9 by using equality constraint as shown below.
    • To learn how to use equality constraint, click here.M2 Fur 3
  7. Repeat step 4-6 to place two more instances of sofa as shown below. M2 Fur 4
  8. Let’s now, place a WC in the toilet, which is a host-based (dependent on the wall) component.

  9. To place a host-based component:

    • Ensure that you have already loaded the family Plumbing_WC in your project.
    • Go to Architecture tab -> Build panel -> Place a Component
      • Alternatively, use “CM”as keyboard shortcut.
    • Select the type for the Plumbing_WC family from the Type selector.
    • In the drawing area, notice that you cannot place this component anywhere. If you take your cursor to a wall, only then you are able to place this component as it requires the wall as its host.
    • Click on the wall on Grid-G as shown below to place the WC in its position.M2 Fur 5
    • Click Esc to end the component tool.
    • Select the WC after placing it. Using the temporary dimensions, adjust the position of the WC to be 0.5m away from the inner face of the wall on Grid 2 as shown below. M2 Fur 6
    • Click Esc to deselect the component.
  10. Now, let’s create one more instance of the same type of WC in another toilet area of the project as shown below. However, instead of using a Component tool, you can use “Create Similar” tool to be more efficient.

    M2 Fur 8

  11. To use create similar tool:

    • As you want to make more instances of the same type of family, select the instance already in the model.M2 Fur 7
    • Go to Modify tab -> Create panel -> Create Similar ( OR “CS”as keyboard shortcut). If you have selected a component, Component tool will be active and the same type from the type selector will be automatically selected.
    • Now, you can continue to place more instances of the same type.
      • Create similar tool works across all Revit elements (ex. walls, grids, doors, etc), it immediately activates the tool required to create another instance of the same type selected of that particular family. Adds wonders to your productivity !!
  12. Adjust the position using temporary dimensions as required after placing the component.
  13. After placing a host-based component, if you would like to move it another host, Move tool will not be very effective. Instead, use “Pick New Host”tool.

  14. To move a host-based component to a different host:

    • Select the component you want to move.
    • Go to Modify tab -> Host panel -> Pick New Host tool.
    • Select a different host element for the component and place it at the required position.
      • Note: If the component is wall-based, you can only select a new host for that component to be a wall. It cannot be placed to a different category of host for which it has not been created.
    • Click Esc to end the Pick New Host tool.
  15. After completing all the steps above, Save As your project as “TutorialComponent_Output_LearningRevitOnline.rvt”.

More References:

Some of the popular online libraries to download Revit components are:

Tutorial: Windows

Bansri Pandey 3 Comments

About Windows

Windows can be added in plan, elevation, section or a 3D view. Windows are loadable families, which means that the family of the Window (sizes, shapes, design) can be customized and placed in the library to load them in your project.

Windows are dependent elements on their host which is usually a wall. Like in real life, a window cannot be placed if there is no wall on site. Similarly, in Revit, a Window cannot be placed without a wall.

Tutorial Objective:

Modeling windows is similar to modeling doors. Thus, it is recommended that you familiarize yourself with tools and techniques shown in the chapter Modeling Doors before starting this tutorial.

In this tutorial, you will learn,

Sample Problem:

  • Add windows of following types in the Ground Floor layout as shown below:
    • W1: 1.0 x 1.0 m (Lintel Height: 2.13m)
    • W2: 1.5 x 1.0 m (Lintel Height: 2.13m)
    • W3: 0.5 x 2.0 m (Lintel Height: 2.13m)
    • W4: 1.5 x 2.0 m (Lintel Height: 2.13m)
    • W5: 1.5 x 0.5 m (Lintel Height 1.6m)
    • W6: 0.5 x 0.5 m (Lintel Height 1.6m)
M2 Win Tutorial
Fig 1. Placement of windows on Ground Floor plan of the sample tutorial project

Sample Files required for this tutorial:

If you do not have the following files, please download them from here.

  1. “TutorialWindows_Input_LearningRevitOnline.rvt”
  2. Window Family file: “Window_Single Panel.rfa”
  3. Window Tag Family file: “Window_Type Tag.rfa”

Solution:

  1. Open ‘TutorialWindows_Input_LearningRevitOnline.rvt’ in Revit. This project file already contains doors modeled in the Ground Floor levels.
  2. Navigate to the floor plan of  “00 Ground Level”.
  3. Windows are loadable families which means we will first need to load the family of the window from the library (if it is not already loaded in your project).

  4. To load a family into the project:

    • Click Insert tab -> Load from Library panel -> Load Family
    • Navigate to the folder where you have downloaded and saved the Window_Single Panel.rfa (If you do not have this file yet, please download it from here).
      • Note: By default, Revit will navigate to the library where default Autodesk families are stored. If you do not find this path when you need it, try to locate it on your PC at : %ALLUSERSPROFILE%\Autodesk\RVT 2019\Libraries (If you cannot still find the location of your family library, please see this Video Tutorial: Locating your family folder )
    • Select the file and Click Open.
    • The family has been loaded into the project.
  5. Now, before we add the windows into our model, we must create the Window types with the specific sizes as required for our project.

  6. To customize the window sizes and create new window types:

    • Click Architecture tab -> Build panel  -> Window
      • Alternatively, use “WN”as keyboard shortcut.
    • From the type selector, select any of the types available for Window_Single Panel  family.
    • From the properties, select Edit Type to access Type properties palette.
    • Click Duplicate to create a new Window Type. In the Name dialog box, give a new name to the window type  “W1_1.0 x 1.0”
    • Click Ok to the Name dialog box.
    • Now, change the parameters Width to 1.0m value and Height to 1.0m value.
    • Click OK to the Type Properties dialog box.M2 Win 1
    • A new window type has been created.
    • Click Esc to end the Window tool.
  7. Repeat step 6 to create following window types:
    • W2_1.5 x 1.0 (width = 1.5m, height = 1.0m )
    • W3_0.5 x 2.0 (width = 0.5m, height = 2.0m )
    • W4_1.5 x 2.0 (width = 1.5m, height = 2.0m )
    • W5_1.5 x 0.5 (width = 1.5m, height = 0.5m )
    • W6_0.5 x 0.5 (width = 0.5m, height = 0.5m )
  8. Now, as all the window types required are prepared, we can begin to place windows in the model.

  9. To place a window in the project:

    • Click Architecture tab -> Build panel  -> Window
      • Alternatively, use “WN”as keyboard shortcut.
    • Select the Window type W1_1.0 x 1.0 from the type selector.
    • Select the window. In the Instance properties, there is parameter known as “Head Height”. This parameter value control the lintel height of the window. Change the value of head height to 2.13m (Note that when you change the value of the Head height, Sill height parameter will change automatically based on the Height of the window selected).
    • In the drawing area, click on the wall where you would like to place the window (between Grid D2-E2 as shown below).  Do not worry about accurate position at the moment. You can adjust it after you have placed the window.M2 Win 2.jpg
      • TIP: Press the Spacebar to flip the window while placing it in plan view.
    • Click Esc twice to end the Window tool.
    • Note that after placing the window, Revit has made an appropriate opening in the wall automatically.
  10. Select the window you have placed.
  11. Temporary dimensions will appear. If they do not appear, click on “Activate Dimensions” on the options bar.
    • TIP: You can also use a permanent dimension (Annotate->Dimension->Aligned Dimension) instead. Select the window and the permanent dimension will be editable. If it is not editable, select Activate Dimensions to make it editable.
    • M2 Win 3
  12. Change the value of the temporary dimension to 0.5m from the right edge of the window to the face of the wall on Grid E as shown above. Use the Witness line controls (blue dots on the temporary dimensions) to adjust the reference of the dimension, if needed.
    • TIP: Alternatively, you can also place a permanent dimension between the window and the wall. Select the window after placing the dimension and change the value of the dimension. (If the dimension is non-editable, click on Activate Dimensions to activate it).
  13. Now, let’s place another instance of the W1_1.0 x 1.0
  14. Repeat step 9 to place the window at Grid J as shown below. M2 Win 4
  15. Using the Align tool (Modify tab -> Modify panel -> Align), align the  edge of the left face of the window to the inner face of the wall as shown below.M2 Win 5
  16. Repeat Step 9 to add other windows as shown in Fig 1. Ensure that the head height for windows is 2.13m for window type W1, W2, W3, W4 and 1.60m for window type W5 and W6.
    • Use tools such as Align and Move to position the windows correctly. You may also use temporary, permanent dimensions and equality constraints to position the windows at a specific distance from other elements. Learn more about these tools in the chapter Modeling Doors
  17. Now, after modeling all windows, navigate to a 3D view to see all the windows in 3D.M2 Win 13
  18. After adding all the windows, let’s now add annotation of the window type numbers as window tags in the drawing as shown in Fig 1.

  19. To Add Window Tags on your drawing:

    • Window tag is a 2D annotation family that needs to be loaded into the project. Repeat step 4 to load the family “Window_Type Tag.rfa“
    • Go to Annotate tab -> Tag panel -> Tag All
    • The ‘Tag All Not Tagged’ dialog box will appear where the loaded Window_Type Tag family is listed. Select this tag by turning on the checkbox besides its name. M2 Win 7
    • Say OK.
    • Tags for all windows will be added in the drawing.M2 Win 8
    • Each window type has been assigned a Type mark which is displayed here. However, the numbering done by Revit may not be as per your specifications. To change the Type mark value of the windows, select the tag and click on its text. Change the value as per your need.
    • When you change the value, Revit will display a warning that if you change a value in the type parameter, all instances of that type will reflect that change. Say Yes to apply this change. M2 Win 9
    • You will see that all the tags of the same window types now reflect the change.M2 Win 10
    • An alternative method to change the type mark of windows is to change the value in the Type properties of the windows.
      • Click Architecture tab -> Build panel  -> Window
      • From the Type selector, select the window type you want to apply the change. Go to Edit Type and open the Type properties palette.
      • Change the value in the Type Mark parameter.M2 Win 11
      • Click Apply.
      • Now select another Type of window in the TYPE field of the type properties palette and change its Type Mark value as required. Click Apply. Repeat this step till you have changed Type mark of all windows.
      • Click OK to the Type properties palette.
    • Click Esc to end the window tool.
    • Note that all window tags now reflect the changes you have made.M2 Win 12
  20. After completing all the steps above, Save As your project as “TutorialWindows_Output_LearningRevitOnline.rvt”.

More References:

Tutorial: Doors

Bansri Pandey 1 Comment

About Doors

Doors can be added in plan, elevation, section or a 3D view. Doors are loadable families, which means that the family of the door (sizes, shapes, design) can be customized and placed in the library to later load them in your project.

Doors are dependent elements on their host which is usually a wall. Like in real life, a door cannot be placed if there is no wall on site. Similarly, in Revit, a door cannot be placed without a wall.

Tutorial Objective:

In this tutorial, you will learn,

Sample Problem:

  • Add doors of following types in the Ground Floor layout as shown below:
    • Door_Single Panel: 0.9 x 2.1 m (all doors except the entrance door)
    • Door_Entrance: 1.50 x 2.63 m (at the entrance of the residence)
M2 Doors Tutorial

Sample Files required for this tutorial:

If you do not have the following files, please download them from here.

  1. “TutorialDoors_Input_LearningRevitOnline.rvt”
  2. Door Family files: “Door_Single Panel.rfa” and “Door_Entrance.rfa”

Solution:

  1. Open tutorial file ‘TutorialDoors_Input_LearningRevitOnline.rvt’ in Revit. This project file already contains walls in the Basement and Ground Floor levels.
  2. Navigate to the floor plan of  “00 Ground Level”.
  3. Doors are loadable families which means we will first need to load the family of the doors from the library (if it is not already loaded in your project).

  4. To load a family into the project:

    • Click Insert tab -> Load from Library panel -> Load Family
    • Navigate to the folder where you have downloaded and saved the Door_Single Panel.rfa (If you do not have this file yet, please download it from here).
      • Note: By default, Revit will navigate to the library where default Autodesk families are stored. If you do not find this path when you need it, try to locate it on your PC at : %ALLUSERSPROFILE%\Autodesk\RVT 2019\Libraries (If you cannot still find the location of your family library, please see this Video Tutorial: Locating your family folder )M2 Doors 1.jpg
    • Select the file and Click Open.
    • The family has been loaded into the project.
  5. Now, before we add the doors into our model, we must create the Door types with the specific sizes as required for our project.

  6. To customize the door sizes and create new door types:

    • Click Architecture tab -> Build panel  -> Door
      • Alternatively, use “DR”as keyboard shortcut.
    • From the type selector, select any of the types available for Door_Single Panel family.
    • From the properties, select Edit Type to access Type properties palette.
    • Click Duplicate to create a new Door Type. In the Name dialog box, give a new name to the door type  “Door_Single Panel_0.9 x 2.1”M2 Doors 2
    • Click Ok to the Name dialog box.
    • Now, change the parameters Width to 0.9m value and Height to 2.1m value.
    • Click OK to the Type Properties dialog box.M2 Doors 3.jpg
    • A new Door type has been created.
    • Click Esc to end the Door tool.
  7. Repeat Step 4 to load the family Door_Entrance.rfa  (If you do not have this file yet, please download it from here).
  8. Repeat Step 6 to create a new door type for the Door_Entrance.rfa family. Name the new Door type as “Door_Entrance_1.50 x 2.63” and change the size parameters to width = 1.50m and height = 2.63mM2 Doors 4
  9.  Now, as all the door types are prepared, we can begin to place doors in the model.
    • TIP: If you are not sure of which type of door types to place in your design, you can always begin by placing doors of any particular type and then later change the door type to a specific one when you have the information. This can be done by simply selecting the door in the model and changing its type from the type selector.

  10. To place a door in the project:

    • Click Architecture tab -> Build panel  -> Door
      • Alternatively, use “DR”as keyboard shortcut.
    • Select the Door type Door_Entrance_1.50 x 2.63 from the type selector.
    • In the drawing area, move your cursor towards the wall where you would like to place the door (between Grid C4-C5 as shown below). Listening dimensions (in blue) will appear to support you to find the position on the wall.
      • TIP: Hover your cursor towards the direction where you would like to set the orientation of the door. The door will flip accordingly. You can also press the Spacebar to flip the door hand from left to right while placing the door in plan view.M2 Doors 5
    • Click on the wall to place the door. Do not worry about the exact positioning of the door or orientation at this moment. You can adjust this after you have placed the door.
    • Click Esc twice to end the Door tool.
    • Note that after placing the door, Revit has made an appropriate opening in the wall automatically.
  11.  Click on the door that you have placed. Flip arrows will appear in the middle of the door. Click on the flip arrows if you wish to change the orientation of the door.
    M2 Doors 6.JPG
  12. We would like to position the door exactly in the center of the two neighboring walls as shown in Fig 1. To do this, the best way is to use permanent dimension and equality constraint.

  13. To adjust the position of an element using permanent dimension and equality constraint:

    • Go to Annotate tab -> Dimension panel -> Aligned
    • On the options bar, select Wall Center line and Pick: Individual References
    • Click the center line of the wall on Grid 4.
    • Click on the center of the Door.
    • Click the center line of the wall on Grid 5.
    • Click on empty space to place the dimension.M2 Doors 7
    • Click Esc twice to end the Dimension tool.
    • Select the dimension that you have placed.
    • There is a small “EQ” sign besides the dimension. Click on this EQ sign.
    • The dimension values will change and display text EQ instead of the values. This shows that the dimensions from the wall center line to the center of the door on both sides have been constrained to be equal. The position of the door has adjusted accordingly. If the wall moves, the door will also move with it to maintain the equal distance to its center. M2 Doors 8.JPG
    • Click Esc to deselect the dimension.
    • If you delete the dimension, a warning sign will be displayed explaining that equality constraint between the elements will be maintained even when the dimension is deleted. Say OK if you wish to do so. If you do not want the equality constraint to be maintained, then select Unconstrain. M2 Doors 9.JPG
  14. Now, repeat step 10 to place the door type “Door_Single Panel_0.9 x 2.1” near Grid F-2 as shown below.M2 Doors10.jpg

  15. Use temporary dimensions to adjust the position of the door:

    • Select the door after placing it. Temporary dimensions will appear. Click on the temporary dimension’s value and change it to 0.7m  as shown below to place the door 0.7m away from the wall on Grid G.
      • Drag a control for the witness line (the blue dots shown in the image) to a different reference, if needed (for ex: from center of the wall to face of the wall)
      • Alternatively,  right-click the witness line control, and click Move Witness Line. You can then move the witness line to a new reference.
        M2 Doors11
  16. Now, repeat step 10 to place the door type “Door_Single Panel_0.9 x 2.1” as shown below.M2 Doors12
  17. Now, for this door, we would like to position the right door frame attached to the right wall. To do this, the best way would be to use Move tool.

  18. Use Move Tool to adjust the position of the door:

    • Go to Modify tab -> Modify panel -> Move
      • Alternatively, use “MV” as a keyboard shortcut.
    • Click on the edge of the right door frame as the base point.
    • Click on the edge of the wall where the door frame needs to be moved.

After the door has been moved, click Esc to end the Move tool.

  • Now, repeat step 10 to place the door type “Door_Single Panel_0.9 x 2.1” as shown below. M2 Doors15
  • Adjust the position of the door on Grid K using the Move tool as shown in step 18 to align the door frame with the wall.
  • Now, the door on Grid I is exactly at the same parallel position as Grid K. To align both of these doors, use Align tool.

  • Use Align tool to adjust the position of the door:

    • Go to Modify tab -> Modify panel -> Align
      • Alternatively, use “AL” as a keyboard shortcut.
    • Click on the center line of the door on Grid K to set it as a reference.
    • Now, click on the center line of the door on Grid I to align with the reference.M2 Doors16
    • Both doors are now aligned with each other.
    • Click Esc to end the Align tool.
  • Using the methods shown above in step 10, 15 and 18, place doors with door type “Door_Single Panel_0.9 x 2.1” as shown below:M2 Doors17
  • Navigate to a 3D view to see all the doors in 3D.M2 Doors 18
  • After completing all the steps above, Save As your project as “TutorialDoors_Output_LearningRevitOnline.rvt”.

    • More References:

    • After placing the door, if you would like to move it to another wall, use ‘pick new host’ tool to move the door.
    • If you would like to create your own custom family for the door, it is advised that you first familiarize yourself with basic family editing tools covered in later sections of this course. However, if you are already familiar with them, you can create a custom door as guided by this Video Tutorial: How to create a door family presented by Brett Grinkmeyer.

    Tutorial: Modeling walls using CAD reference

    Bansri Pandey Leave a comment

    Make sure that you have completed the Tutorial Import a CAD drawing and Modelling Basic Walls, before moving on with this tutorial.

    Tutorial Objective:

    In Modelling Basic Walls chapter, we learnt about modelling basic walls, Trim/Extend Tools and using dimensions for modeling purposes. Please make sure that you are familiar with these tools as well as how to Import/Link a CAD drawing, before starting with this tutorial.

    In this tutorial, you will learn,

    Sample Problem:

    • Add walls for the Ground Floor of the sample project as shown below. Use the  linked/imported CAD drawing “Ground Floor Layout_For Import.dwg” as reference. (as imported in previous chapter Import a CAD drawing).
    M2 Import wall Tutorial.JPG
    Fig 1. Walls in the Ground Floor Layout of the Sample project

    Sample Files required for this tutorial:

    If you do not have the following files, please download them from here.

    1. “TutorialWallsCAD_Input_LearningRevitOnline.rvt”
    2. “Ground Floor Layout_For Import.dwg”

    Solution:

    1. Open ‘TutorialWallsCAD_Input_LearningRevitOnline.rvt’ in Revit. This project file already contains “Ground Floor Layout_For Import.dwg” imported into the floor plan view of  “00 Ground Level”. It also contains the basic wall types required for the project.
    2. Navigate to the floor plan of  “00 Ground Level”. Notice the Imported CAD drawing in the view.
    3. Now, before modelling walls, let’s hide the layers of the CAD drawing which are not necessary for us at the moment.

    4. To hide layers of the CAD file:

      • Go to View tab -> Graphics panel -> Visibility Graphics -> Visibility Graphics Override dialog box will appear.
        • Alternatively, use “VG” as a keyboard shortcut.
      • Go to Imported Categories tab.
      • Expand the row with the name of the CAD file:  Ground Floor Layout_For Import.dwg
      • The list of all layers available are present.
      • Turn off the checkbox for layers you do not need. For example, furniture layer with the name “FUR”. M2 Import wall 8
      • Say OK.
      • You will notice that the elements present in the FUR layer (Furniture) is turned off in the drawing area.
    5. If you do not know which elements are in which layer, you can also use Query tool to identify and hide the layers.

    6. To query a CAD file:

      • Select the CAD file in the drawing area.
      • Under Modify tab-> Import Instance panel -> select Query
      • Select the part of the CAD file for which you would like information. For example, select the text in the Grid bubble of the CAD file as shown below. M2 Import wall 9
      • Import Instance Query dialog box will appear showing the information of the selected element.
      • Choose “Hide in View” to hide the shown layer from the drawing area.
      • Continue to make further queries, if you like.
      • After completing, Click Esc to end the Query tool.
    7. Using Steps 4 and 6, turn off all layers except layer “wall”(for walls) and “dw”(for doors and windows). M2 Import wall 10
    8. Now, let’s create the walls of the kitchen room between Grid C-2 and G-4.
    9. First, we will have to know the wall thickness/wall type required.
    10. Use dimension tool to know the wall thickness.

    11. To place a dimension:

      • Go to Annotate tab -> Dimension panel -> Aligned
        • Alternatively, use “DI”as a keyboard shortcut.
      • Click the line (of the CAD file) at the face of the wall.
      • Click on the other face of the wall for which dimension is needed.
      • Click in an empty space to place the dimension.
      • In this case as shown below, the wall thickness is 230mm/0.23m M2 Import wall 11
    12. Now, there are two ways to model walls. One is to sketch the wall in a rectangular/striaght line shape snapping on the CAD lines. The other is to use ‘Pick line’ tool. Let’s learn both.
    13. At this point, ignore the openings for Doors and Windows. When Doors and windows are modeled, openings will be made automatically by Revit in the walls.

    14. To sketch walls by snapping on the CAD lines:

      • Click Architecture tab -> Build panel -> Wall drop-down -> Wall: Architectural
        • Alternatively, use keyboard shortcut ‘WA’.
      • From the Type Selector, select ‘230mm Brick Masonry’ wall type.
      • From the Draw panel, select Rectangle as shape.
      • On the options bar, select Location Line as the Core Face Exterior as we want to match the exterior brick face of the wall to the outer rectangle in CAD. (Learn more about Location Line here).
      • On the options bar, Set the Height constraint to “01 First Floor Level”.
      • Enter the start and end point of the rectangle by snapping on the CAD lines as shown below.M2 Import wall 12
      • The rectangular wall has been created.
    15. Let’s model walls between Grid B-5 to E-9 using ‘Pick Lines’ tool.

    16. To model walls using Pick Lines tool:

      • Click Architecture tab -> Build panel -> Wall drop-down -> Wall: Architectural
        • Alternatively, use keyboard shortcut ‘WA’.
      • From the Type Selector, select ‘230mm Brick Masonry’ wall type.
      • On the options bar, select Location Line as the Core Face Exterior as we want to match the exterior brick face of the wall to the outer rectangle in CAD. (Learn more about Location Line here).
      • On the options bar, Set the Height constraint to “01 First Floor Level”.
      • From the Draw panel, select ‘Pick Lines’ tool.
      • In the drawing area, select the edge/line of the CAD file as shown below where you would like to place a wall. A blue dotted reference line will be shown while you try to select the line – to show in which direction the wall will be placed. Keep your cursor towards the direction where you want to place the wall and then when the dotted reference is showing correctly, click to place the wall. M2 Import wall 14
      • The wall has been placed of the length equal to the line selected.
      • Similarly, select lines/edges in all four directions of the room – as shown below.
        • TIP: . In CAD, lines that you pick may not represent the actual length of the wall. Instead of picking multiple lines and create more instances of the walls along the length of the wall, use Trim/Extend tools to reduce the number of Instances.M2 Import wall 15
      • Using Trim/Extend to Corner tool connect all four walls in a rectangular shape.
        • Go to Modify Tab -> Modify Panel -> select Trim/Extend to Corner
          • Alternatively, use keyboard shortcut ‘TR’.
        • Click on the two walls between which a L Corner is needed to be created.
      • A rectangular wall between Grid B-5 to E-9 has been created.M2 Import wall 16
    17. Now, let’s create more walls between Grid G-2 and K-4.
    18. Using Pick Lines tool (as shown in step 16), create walls of 230mm wall type on vertical Grid I and K as shown below.M2 Import wall 17
    19. Using Trim/Extend to Corner tool connect the wall on Grid 2 with Grid K.
      • Note on Best Practice: Now, instead of creating an additional horizontal instance on Grid 2, it is better to use Trim/Extend to Corner tool to extend the length of the wall to connect with the vertical walls added in the previous step 18.
    20. Using Pick Lines tool (as shown in step 16), create walls of 230mm wall type on horizontal Grid 3 and 110mm wall type on the partition wall located slightly above Grid 3 as shown below.M2 Import wall 18
    21. Using Trim/Extend Multiple Element, extend these walls towards the vertical wall on Grid I.

    22. To Trim/Extend Multiple Element:

      • Go to Modify Tab -> Modify Panel -> select Trim/Extend Multiple Element
      • Click on the vertical wall on Grid I to define the border for extension.
      • Click on the horizontal walls around Grid 3 that needs to be extended.
      • A Tee-Junction has been created between these walls.
      • Click Esc to end the tool.M2 Import wall 19.JPG
    23. To draw other walls on the Ground Floor layout as shown below, use either the sketch walls (as shown in step 14) or Pick Lines tool (as shown in step 16). Reduce the number of instances by using Trim/Extend tools. M2 Import wall 20.JPG
      • TIP: Switch to “Shaded” visual style to clearly see where the walls have been already modeled.
        • Go to View Control Bar -> Visual Style -> Graphic Display Options -> ShadedM2 Import wall 21.jpg
    24. After completing modeling all walls, you may choose to hide the imported CAD file to see the Revit model clearly.

    25. To hide the imported CAD file,

      • Go to Visibility Graphics (“VG”as a keyboard shortcut).
      • Go to Imported Categories tab -> Select the Imported CAD file and turn off the checkbox beside the name of the CAD file.M2 Import wall 22.JPG
      • Say OK.
    26. The CAD file is now hidden from the view. If you want, you can repeat the step 25 and turn on the checkbox in the visibility graphics to unhide the imported CAD file.
    27. After all the walls are created and if you do not need the imported CAD file, you may select and delete it from the project.
      • TIP: If you have linked your CAD file, then you may unload the link by going to Insert -> Manage Links -> CAD Formats -> Unload. When you need the file again, you can Reload it in the project. If you are sure that you do not need the linked file again, then you can also remove it instead of unloading it.
    28. Navigate to a 3D view to see all the walls in 3D. M2 Import wall 23.JPG
    29. After completing all the steps above, Save As your project as “TutorialWallsCAD_Output_LearningRevitOnline.rvt”.

    More References:

    Tutorial: Import/Link a CAD drawing

    Bansri Pandey 3 Comments

    About Using CAD drawings in Revit

    Some architects like to begin their design in CAD software tools. CAD drawings are then imported/linked in Revit to be used as references/underlay. REVIT model geometry is then built by tracing over elements in CAD file. Another popular reason to import CAD files into Revit is to use them for detailing purposes. If you already have some details drafted in CAD, you may import them in Drafting view and use them in Revit.

    You can either import a CAD file or you can link it. If you expect the CAD file to change, it is best to link it. If the CAD file is revised, then you can simply reload the linked files in Revit and see those changes. However, if you do not expect the CAD file to change, it is best to Import it. Importing a CAD file will increase the size of the Revit project file, but in turn will use less memory.

    Tutorial Objective:

    In this tutorial, you will learn,

    Sample Problem:

    • Link a CAD file containing the Ground floor layout of the sample project into Revit and place it on the “00 Ground Level” Floor Plan as shown below.
    M2 Import Tutrial.jpg

    Files required for this tutorial:

    If you do not have the following files, please download them from here.

    1. “TutorialImportCAD_Input_LearningRevitOnline.rvt”
    2. “Ground Floor Layout_For Import.dwg”

    Solution:

    1. Make sure that you have the CAD file “Ground Floor Layout_For Import.dwg”  and have prepared it as per the tips in step 2.

    2. Prepare CAD file before importing:

      Open your CAD program and make sure you have done the following:

      • Have only those geometries/layers in the CAD file which are necessary for you to use in Revit (this will reduce the file size and the memory required in Revit). You may also choose to Freeze the layers which are not required.
      • Many CAD users like to put layouts, elevations, sections, etc all in one CAD file. Do not crowd multiple drawings in one CAD file while importing in Revit. For example, if you are importing a layout drawing of a particular floor, try to have only that layout in the CAD file. If necessary, copy the geometry you would like to import and paste it into a new CAD file, to avoid any unnecessary references.
      • Purge your file before importing.
      • Check if drawing units and file units are consistent.
      • If you need Xrefs, then bind them in your drawing. If you do not need them, unload/remove them.
      • Copy the original file before modifying for import. Just in case, if you need to get back to the original version.
      • Open the tutorial file ‘TutorialImportCAD_Input_LearningRevitOnline.rvt’ in Revit. This project file already contains model geometry for basement floor, grids, levels and section views.
      • Navigate to the floor plan of  “00 Ground Level”.
      • Go to Insert tab -> Link -> Link CAD (If you would like to import a CAD file not link it, you may chose to go to Insert tab->Import-> Import CAD)
      • A Link CAD Formats dialog box will appear. Use following Settings:M2 Import 1
        • Check the “Current View Only” checkbox if you want this CAD file to be visible only in the view it is being imported (Ground Level Floor Plan). If you do not check this box, the CAD file will appear in all views, including 3D views.
        • Colors: Preserve (if you want to preserve the colors of the layers in CAD file).
        • Layers: All (If you choose to import only visible layers in CAD or choose Specify option if you would like to import only selected layers. The selection option will appear during the import process).
        • Import Units: “Ground Floor Layout_For Import.dwg” used for this tutorial has been created in Imperial Units (Inches) while the model in Revit is being created in Metric Units. To import this file correctly, choose “Inch” in the Import units.
        • Positioning: Auto-Center to Center (this will place the center of the CAD file to the center of the Revit view). Choose other options if you would like to place the CAD file Origin-Origin / By Shared Coordinates.
        • Place at: 00 Ground Level is seelcted by default as we are trying to import the CAD file in the active view.
      • After selecting all the Settings as above, click Open. This will import the CAD file in the view.
    4. However, note that CAD file imported is not at the correct position.M2 Import 2
    5. To move the CAD file to the right position, use Move tool.

    6. To Move,

      • Select the object (in this case, the imported CAD file).
      • Go to Modify panel -> Modify -> select Move tool.
        • Alternatively, use “MV” as a keyboard shortcut.
      • Click to enter move start point. In this case, it would be the top left corner intersection of the center line in the CAD file. This will be the base point for moving the CAD file.
      • Click to enter move end point. In this case it would be the intersection of Grid 1-A. M2 Import 3
      • Click Esc to end the Move tool.
    7. Once the position of the CAD file is correct, it is best to PIN it. It will prevent you to move/ delete the file by mistake.

    8. To Pin the CAD file:

      • Select the CAD file.
      • Go to Modify panel -> Modify -> select Pin tool.
        • Alternatively, use “PN” as a keyboard shortcut.
      • The CAD file is now pinned.
      • Click Esc to end the Pin tool.M2 Import 4
        • NOTE: If you would like to Unpin the CAD file,
          • Select the CAD file.
          • Go to Modify panel -> Modify -> select UnPin tool.
            • Alternatively, use “UP” as a keyboard shortcut.
          • The CAD file will be unpinned.
    9. To give the visibility of an Underlay for the CAD file (in order to avoid confusion between Revit model geometry and visible geometry of CAD file), the imported geometry can be set to halftone or some of the layers can be turned on/off.

    10. To control the visibility of the CAD file:

      • Go to View tab -> Graphics panel -> Visibility Graphics -> Visibility Graphics Override dialog box will appear.
        • Alternatively, use “VG” as a keyboard shortcut.
      • Go to Imported Categories tab.
      • Check the checkbox for halftone.
        • TIP: To turn on/off particular layers, use checkbox besides the layer names.M2 Import 5
      • Click Ok.
      • Note that the CAD file in the drawing area is now grey/halftone. M2 Import 6
    11. As we have linked the CAD file, it will be possible to see the changes if the CAD file is updated by reloading it.
      • Go to Insert tab -> Link panel -> Manage Links -> Manage Links dialog box will appear.
      • Go to CAD formats tab.
      • The linked CAD file will be listed here. Select the row of the linked CAD file.
      • Click Reload to reload the file from the same path.
      • Use Reload From… option if the path of the file is changed.
        • If you would like to unload the file from your project, choose Unload. You can at a later stage, use Reload to reload it in your project.
        • If you would like to completely remove the file from your project, choose Remove. You cannot Reload the linked CAD file, if you have removed it. You will need to link the file again. M2 Import 7
    13. After completing all the steps above, Save your project file.

    More References:

    Importing from other sources:

    Q&A

    Have any Questions? or Suggestions? or Feedback? Please feel free to Contact Us, we will get back to you as soon as we can.