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Transcript
00:00
Assembly modeling
00:02
After completing this lecture,
00:04
you'll be able to
00:05
understand assembly modeling infusion,
00:07
identify bodies and components,
00:09
describe the use of joints and understand internal and external references.
00:14
First,
00:14
we need to understand what is an assembly.
00:17
Assemblies contain multiple components that make up a larger design.
00:21
Components can be internal or external to an assembly.
00:24
Components can include joints or relationships
00:27
that allow for constrained motion.
00:29
Components are containers for body,
00:31
sketches,
00:32
features,
00:32
coordinate systems,
00:33
and more,
00:34
and assemblies are used in exploded view animations and drawings.
00:39
So now let's talk about bodies and components.
00:42
Bodies represent solid model geometry in a design or assembly.
00:47
Components represent a container for bodies that include a unique
00:50
origin and other design elements such as features and sketches.
00:54
We can also have groups of components which create subassemblies.
00:58
Fusion will track components from the top level all the way down through in
01:02
each individual coordinate system or origin folder
01:05
that is contained in each component.
01:07
These origins are tracked anytime a component moves,
01:10
whether it's through the use of joints or if it's simply dragged on the canvas area.
01:14
Joints will define the degrees of freedom between components.
01:19
Let's talk about some common assembly tools.
01:22
We have new component,
01:24
which creates an empty or from body component for standard or sheet metal bodies.
01:29
We have joint and as-built joint that allows us to position
01:32
components and define their degrees of freedom relative to each other.
01:36
Rigid group is a subset of joints which allows
01:39
us to lock the position of selected components,
01:41
so they move as a single fixed object.
01:44
Motion links will create a connected relationship between two joints.
01:49
Contact sets allow us to enable solid body contact
01:52
analysis between selected components inside of a contact set.
01:56
And emotion study is a kinematic motion analysis
01:59
based on joint motion and degrees of freedom.
02:03
So what are joints?
02:05
Joints will allow a user to select positions of two components,
02:09
position them relative to the selection,
02:10
and define their degrees of freedom.
02:13
As built joints allow a user to define degrees
02:15
of freedom between components using their current assembly position.
02:19
We have several different joint types that we can use inside a fusion.
02:23
First,
02:23
we have a rigid joint which has 0 degrees of freedom.
02:26
A revolute joint allows 1 degree of rotation.
02:29
A slider allows 1 degree of translation.
02:32
Cylindrical will allow 1 degree of rotation and
02:38
Pin slot allows for 1 degree of rotation
02:40
and 1 degree of translation on different axes.
02:43
Planar will be 2 degrees of translation and 1 degree of rotation.
02:47
And finally,
02:47
a ball joint allows for 3 degrees of rotation.
02:52
What are assembly references?
02:54
References include internal and external references.
02:58
Internal references will be components that are created directly in a design.
03:03
They are saved in the design and only exist in that design,
03:06
commonly referred to as top down.
03:09
External are components that are saved externally in their own
03:12
design and are referenced or linked in an assembly.
03:15
External components have a chain link icon in the
03:17
browser and are commonly referred to as bottom up.
03:21
We also have derived and distributed designs.
03:24
A distributed design is a design that contains externally referenced components,
03:28
and a derived design is a component that is
03:31
saved externally and references back to an assembly.
03:34
Derived designs don't carry any feature history and
03:37
maintain a link to their parent design.
03:40
So which assembly method is best?
03:42
There is no correct answer to which modeling approach you should take,
03:45
but there are a few key differences that may push you one way or the other.
03:49
Externally referenced components can be reused in other designs easily.
03:53
Externally referenced components or subassemblies can be worked
03:56
on by other users without reserving a design.
03:59
And derived components can be used to design fixturing
04:02
or packaging for manufacture without affecting the original design.
04:06
So in conclusion,
04:07
assemblies are groups of components that make up a larger design.
04:11
Components are containers for bodies,
04:13
sketches,
04:13
features,
04:14
origins,
04:14
and more.
04:16
Assemblies can have internal and external references,
04:18
and assemblies use joints to create a relationship between components for motion.
Video transcript
00:00
Assembly modeling
00:02
After completing this lecture,
00:04
you'll be able to
00:05
understand assembly modeling infusion,
00:07
identify bodies and components,
00:09
describe the use of joints and understand internal and external references.
00:14
First,
00:14
we need to understand what is an assembly.
00:17
Assemblies contain multiple components that make up a larger design.
00:21
Components can be internal or external to an assembly.
00:24
Components can include joints or relationships
00:27
that allow for constrained motion.
00:29
Components are containers for body,
00:31
sketches,
00:32
features,
00:32
coordinate systems,
00:33
and more,
00:34
and assemblies are used in exploded view animations and drawings.
00:39
So now let's talk about bodies and components.
00:42
Bodies represent solid model geometry in a design or assembly.
00:47
Components represent a container for bodies that include a unique
00:50
origin and other design elements such as features and sketches.
00:54
We can also have groups of components which create subassemblies.
00:58
Fusion will track components from the top level all the way down through in
01:02
each individual coordinate system or origin folder
01:05
that is contained in each component.
01:07
These origins are tracked anytime a component moves,
01:10
whether it's through the use of joints or if it's simply dragged on the canvas area.
01:14
Joints will define the degrees of freedom between components.
01:19
Let's talk about some common assembly tools.
01:22
We have new component,
01:24
which creates an empty or from body component for standard or sheet metal bodies.
01:29
We have joint and as-built joint that allows us to position
01:32
components and define their degrees of freedom relative to each other.
01:36
Rigid group is a subset of joints which allows
01:39
us to lock the position of selected components,
01:41
so they move as a single fixed object.
01:44
Motion links will create a connected relationship between two joints.
01:49
Contact sets allow us to enable solid body contact
01:52
analysis between selected components inside of a contact set.
01:56
And emotion study is a kinematic motion analysis
01:59
based on joint motion and degrees of freedom.
02:03
So what are joints?
02:05
Joints will allow a user to select positions of two components,
02:09
position them relative to the selection,
02:10
and define their degrees of freedom.
02:13
As built joints allow a user to define degrees
02:15
of freedom between components using their current assembly position.
02:19
We have several different joint types that we can use inside a fusion.
02:23
First,
02:23
we have a rigid joint which has 0 degrees of freedom.
02:26
A revolute joint allows 1 degree of rotation.
02:29
A slider allows 1 degree of translation.
02:32
Cylindrical will allow 1 degree of rotation and
02:38
Pin slot allows for 1 degree of rotation
02:40
and 1 degree of translation on different axes.
02:43
Planar will be 2 degrees of translation and 1 degree of rotation.
02:47
And finally,
02:47
a ball joint allows for 3 degrees of rotation.
02:52
What are assembly references?
02:54
References include internal and external references.
02:58
Internal references will be components that are created directly in a design.
03:03
They are saved in the design and only exist in that design,
03:06
commonly referred to as top down.
03:09
External are components that are saved externally in their own
03:12
design and are referenced or linked in an assembly.
03:15
External components have a chain link icon in the
03:17
browser and are commonly referred to as bottom up.
03:21
We also have derived and distributed designs.
03:24
A distributed design is a design that contains externally referenced components,
03:28
and a derived design is a component that is
03:31
saved externally and references back to an assembly.
03:34
Derived designs don't carry any feature history and
03:37
maintain a link to their parent design.
03:40
So which assembly method is best?
03:42
There is no correct answer to which modeling approach you should take,
03:45
but there are a few key differences that may push you one way or the other.
03:49
Externally referenced components can be reused in other designs easily.
03:53
Externally referenced components or subassemblies can be worked
03:56
on by other users without reserving a design.
03:59
And derived components can be used to design fixturing
04:02
or packaging for manufacture without affecting the original design.
04:06
So in conclusion,
04:07
assemblies are groups of components that make up a larger design.
04:11
Components are containers for bodies,
04:13
sketches,
04:13
features,
04:14
origins,
04:14
and more.
04:16
Assemblies can have internal and external references,
04:18
and assemblies use joints to create a relationship between components for motion.
After completing this video, you’ll be able to:
Lecture
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