AssemblyComponentGeometry Object Preview

Derived from: Base Object
Defined in namespace "adsk::cam" and the header file is <Cam/Tools/AssemblyComponentGeometry.h>

PreviewThis functionality is provided as a preview of intended future API capabilities. You are encouraged to use it and report any problems or suggestions using the Fusion API and Scripts forum.

Because this is a preview of future functionality, there is the possibility that it will change, which will possibly break any existing programs that use this functionality. Because of that, you should never deliver any programs that use any preview capabilities. For a distributed program, you should wait until it has moved from preview to released state.

Description

Represents the 3D geometry and attachment points for a tool component (such as a tool holder or tool block).

AssemblyComponentGeometry provides the ability to define custom 3D geometry for tool components using STEP file data, along with joint origins that specify how the component attaches to other parts of the tool assembly (machine side and cutting side).

Methods

Name Description
classType Static function that all classes support that returns the type of the class as a string. The returned string matches the string returned by the objectType property. For example if you have a reference to an object and you want to check if it's a SketchLine you can use myObject.objectType == fusion.SketchLine.classType().
setStepGeometry Use the given step file geometry to set the geometry of the tool item.

Properties

Name Description
isValid Indicates if this object is still valid, i.e. hasn't been deleted or some other action done to invalidate the reference.
isValidGeometry An Assembly Component Geometry instance is valid if we have all of: 1. Valid solid geometry representing the shape of the item 2. A valid joint origin for both Machine and Cutting side attachments

If we are missing any or all of these elements the item is invalid, and will not be used by any tool it is attached to for rendering or simulation purposes.
objectType This property is supported by all objects in the API and returns a string that contains the full name (namespace::objecttype) describing the type of the object.

It's often useful to use this in combination with the classType method to see if an object is a certain type. For example: if obj.objectType == adsk.core.Point3D.classType():

Accessed From

ToolBlock.geometry, TurningTool.holderGeometry

Version

Introduced in version April 2026