Mass Modeling Extrude
Introduction
In this tutorial we are going to create a building mass with extrusions.
Create Mass Extrusion
Create a project:
- Click the Application Button, under New, click Project.
- Under Template file, make sure the a metric, Architectural Template is selected. The exact options you get may depend on the version of Revit you've installed.
- Under Create New, make sure Project is selected,
- Click OK.
Creating a mass in a Revit project.
- In the Ribbon, open the View tab. In the Create panel, click 3D View to create a new 3D View. Only do this if there is no 3D view.
- Open the 'Massing & Site' tab in the Ribbon.
- In the 'Conceptual Mass' panel, click (In-Place Mass). This will create a custom mass object in which you build the mass itself.
Revit may pop-up a message about changing the view settings for massing purposes. Dismiss this message.
- Enter any name you want in the pop up.
You will now go into editing mode.
- In your Project Browser go to level 1.
- In the Draw panel in the Ribbon, click (Line) and draw 3 lines as is shown below.
- Draw a Arc (start end radius arc) to close the boundary, click and draw first the start point, second the end point and the third point for the radius.
This is your base or profile. The next step is to extrude a profile from the base/profile. More exotic shapes can be made by using multiple profiles.
- The profile is now extruded into a Mass. You can adjust the amount by which you extrude the profile by moving the X,Y,Z handle up or down. The X,Y,Z handles are green, blue and red respectively.
- Change the height to 5000 mm by clicking the numeric dimension. Type 5000.
Add extrusion and Modify extrusion
Next we'll add extrusion to the mass.
- Select the upper face of the mass. Use Tab & LMB (left mouse button) to cycle through the elements.
- Click the lower part of the (Create Form) button, then (Solid Form).
- Click the lock icon of the new extrusion. Now you are free to change the shape in any direction.
- Change the height to 3500 mm.
Modify mass: Scale
- Select the upper face of the mass
- Go to the Modify panel and Click Scale
- First select the top corner of the mass
- Second select the opposite corner of the corner
- Third slide your mouse over the edge and click the line at a distance of 4000 mm.
Modify mass: Rotate
- Select the upper face of the mass
- Go to the East Elevation view in the Project Browser
- Go to the Modify panel and Click Rotate
- Now you will see a blue point (center of rotation) appear with a line you can rotate with your mouse
- Drag the center of rotation to the corner with your LMB (left mouse button)
- Click outside of the mass in the same direction of the upper face
- Move your mouse to give a rotation of 10 degrees
Change coordinate system of top face
Now the top face of the mass has been rotated. When you select the top face the X,Y,Z handle will appear.
There are two coordinate systems:
- 1) Local and
- 2) World
With Space Bar you can choose the coordinate system.
Add extrusions
Add two new extrusion to the mass.
- Select the side face of the mass and create an extrusion
- Set the extrusion distance to 5000 mm
- Click the lock icon so you can change the extrusion in any direction.
Do the same for extrusion above the last one
Create Hole in Mass
In the next steps a Void mass will be made with the Work plane viewer.
Changing the Work Plane
Change the Work Plane to the face as shown in the figure below.
Creating a Void Form
- In the Work Plane panel in the Ribbon, click (Work Plane Viewer)
- In the Draw panel in the Ribbon, click (Rectangle)
- Draw a rectangle on the face with the Work Plane Viewer:
- Click Modify or press Esc to finish.
Now we're going to create a Void Form from the profile we've just drawn.
- Select the rectangle you've drawn.
- Click the lower part of the (Create Form) button, then (Void Form).
- Change the 'height' (or 'depth') of the extrusion and make sure it goes into the original Mass.
- This Form can also be modified by selecting faces or edges and moving them.
- Click (Finish Mass)
When you select the Mass, you can apply some quick modifications:
Using the blue arrows, you can move each of the faces. The movement is always perpendicular to the face.