Use the Create Form tool to create solid and void extrusions from various geometric shapes.
Select lines and closed loop shapes to create forms.
- Modify | Lines
Form panel 
(Create Form)
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Forms
Topics in this section
- About Forms
Create forms to explore a building concept with extrusions, sweeps, and lofts. - About Unconstrained and Referenced-Based Forms
Modification behaviors of forms created from model lines or forms created from reference lines will differ. - About X-ray Mode
In the conceptual design environment, X-ray mode displays a form as transparent, revealing its paths, profiles, and system-generated guides. - About Form Profiles
Form profiles define and edit the basic shape of a form in a conceptual design. - About Form Dimensions
In the conceptual design environment, you can specify dimensions for forms. Form dimensions work similarly to dimensions in the project environment. - Create a Solid Form
Create solid geometry with the Create Form tool. - Create a Void Form
Create negative geometry (voids) to cut solid geometry with the Create Void tool. - Edit a Form in X-ray Mode
Edit the source geometry of a form to adjust its shape. - Add a Profile to a Form
Add a profile and use it to directly manipulate the geometry of the form in a conceptual design. - Modify a Form Profile
Edit profiles or paths from which forms are created. - Lock or Unlock a Form Profile
Lock a form profile to constrain its relationship to other profiles in the form. - Add an Edge to a Form
Add an edge to change the geometry of a form. - Dissolve a Form
In a conceptual design, you can reduce a form to its underlying editable curves. - Cut Geometry with a Solid Form
While working with families in the Family Editor, you can cut form geometry with a solid form. - Rehost a Form
Move a form to another work plane, level, or surface in the conceptual design environment. - Forms Based on Imported Geometry
Import ACIS geometry as a reference to create a form, divide a surface, or host point elements. - Form Modification Reference
Modify forms by adjusting points and vertices, and by adding, deleting, and modifying edges and profiles. - Form Instance Properties
View and modify the parameters that define the instance properties of conceptual forms.
Parent topic: Conceptual Design Environment