& Construction
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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing
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Professional CAD/CAM tools built on Inventor and AutoCAD
Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Understand the benefits of using Fusion.
Type:
Tutorial
Length:
5 min.
Transcript
00:03
A sketch is a geometric profile that forms the foundation
00:07
of 3D geometry in a design in fusion 360.
00:13
Before you can create 3d objects in your design,
00:17
you first need to create the underlying sketch profiles
00:20
that drive the overall shapes of the parametric solid
00:23
surface or tin
00:25
bodies that make up your design.
00:29
A sketch is the backbone of any subsequent parametric modeling.
00:33
If you create a robust sketch profile,
00:36
you can improve your workflow
00:37
and minimize potential downstream issues in your design.
00:42
An open profile is a series of connected two
00:45
D geometry that does not form a closed boundary.
00:49
You can use open profiles to create surface bodies
00:52
to extrude thin solid features
00:55
or to guide some modeling operations like loft.
00:59
A closed profile is a series of connected two
01:02
D geometry that does form a closed boundary.
01:06
A sketch profile is shaded blue when it is closed
01:09
and can be used to extrude 3d shapes
01:11
or perform 3d boolean commands. For example,
01:16
an unconstrained sketch contains some geometry that is not locked down by
01:20
constraints and dimensions and is still free to move in space.
01:26
Unconstrained sketches are useful early on in the
01:28
design process when you're still exploring form,
01:32
experimenting
01:33
and want more flexibility before you commit to your design intent.
01:37
And you can lock things down gradually as you evolve the design.
01:42
Be aware though
01:43
that if you reference unconstrained sketch, jumpy
01:46
and downstream designs,
01:47
it can cause unpredictable results in complex parametric assemblies.
01:53
A constraint sketch contains geometry that is
01:56
locked down in place by constraints and dimensions
01:59
and cannot move when clicking and dragging with your mouse.
02:04
Constrained sketches are useful when you know
02:06
the precise dimensions and details of a design
02:09
such that you are certain about your design intent,
02:13
their behavior in complex parametric designs is more predictable.
02:17
Although be aware that constrained sketches can lock down features in your design
02:22
more robustly than you might want early on in their design process.
02:27
So be cautious when adding too many details and
02:29
constraints into a single sketch at this stage.
02:34
Sketch geometry is the default line type used to create two
02:38
D features in a sketch that contribute to the sketch profile
02:42
and display as a solid blue line. When unconstrained
02:48
construction geometry is a line type used as
02:51
a reference for sketch geometry constraints and dimensions.
02:55
And it does not contribute to the sketch profile.
02:59
Construction geometry displays as a dashed orange line. When unconstrained
03:06
centerline geometry is a line type used
03:09
to revolve sketch profiles or define symmetry
03:12
and it contributes to the sketch profile.
03:16
Centerline geometry displays as a dashed orange center line when unconstrained
03:23
projected geometry is an associative reference to profiles of two D or
03:32
and displayed as purple lines and points.
03:36
If you update the reference geometry,
03:39
the projected geometry updates to reflect the change.
03:44
Fixed geometry is any sketch construction
03:48
or centerline geometry that you have locked in place and displays as green.
03:54
If you need to edit or move fixed geometry, you first need to unfix it.
03:59
Now, you have a bit more of an understanding on sketch profiles,
04:02
constrained versus unconstrained sketches
04:05
as well as geometry types.
Video transcript
00:03
A sketch is a geometric profile that forms the foundation
00:07
of 3D geometry in a design in fusion 360.
00:13
Before you can create 3d objects in your design,
00:17
you first need to create the underlying sketch profiles
00:20
that drive the overall shapes of the parametric solid
00:23
surface or tin
00:25
bodies that make up your design.
00:29
A sketch is the backbone of any subsequent parametric modeling.
00:33
If you create a robust sketch profile,
00:36
you can improve your workflow
00:37
and minimize potential downstream issues in your design.
00:42
An open profile is a series of connected two
00:45
D geometry that does not form a closed boundary.
00:49
You can use open profiles to create surface bodies
00:52
to extrude thin solid features
00:55
or to guide some modeling operations like loft.
00:59
A closed profile is a series of connected two
01:02
D geometry that does form a closed boundary.
01:06
A sketch profile is shaded blue when it is closed
01:09
and can be used to extrude 3d shapes
01:11
or perform 3d boolean commands. For example,
01:16
an unconstrained sketch contains some geometry that is not locked down by
01:20
constraints and dimensions and is still free to move in space.
01:26
Unconstrained sketches are useful early on in the
01:28
design process when you're still exploring form,
01:32
experimenting
01:33
and want more flexibility before you commit to your design intent.
01:37
And you can lock things down gradually as you evolve the design.
01:42
Be aware though
01:43
that if you reference unconstrained sketch, jumpy
01:46
and downstream designs,
01:47
it can cause unpredictable results in complex parametric assemblies.
01:53
A constraint sketch contains geometry that is
01:56
locked down in place by constraints and dimensions
01:59
and cannot move when clicking and dragging with your mouse.
02:04
Constrained sketches are useful when you know
02:06
the precise dimensions and details of a design
02:09
such that you are certain about your design intent,
02:13
their behavior in complex parametric designs is more predictable.
02:17
Although be aware that constrained sketches can lock down features in your design
02:22
more robustly than you might want early on in their design process.
02:27
So be cautious when adding too many details and
02:29
constraints into a single sketch at this stage.
02:34
Sketch geometry is the default line type used to create two
02:38
D features in a sketch that contribute to the sketch profile
02:42
and display as a solid blue line. When unconstrained
02:48
construction geometry is a line type used as
02:51
a reference for sketch geometry constraints and dimensions.
02:55
And it does not contribute to the sketch profile.
02:59
Construction geometry displays as a dashed orange line. When unconstrained
03:06
centerline geometry is a line type used
03:09
to revolve sketch profiles or define symmetry
03:12
and it contributes to the sketch profile.
03:16
Centerline geometry displays as a dashed orange center line when unconstrained
03:23
projected geometry is an associative reference to profiles of two D or
03:32
and displayed as purple lines and points.
03:36
If you update the reference geometry,
03:39
the projected geometry updates to reflect the change.
03:44
Fixed geometry is any sketch construction
03:48
or centerline geometry that you have locked in place and displays as green.
03:54
If you need to edit or move fixed geometry, you first need to unfix it.
03:59
Now, you have a bit more of an understanding on sketch profiles,
04:02
constrained versus unconstrained sketches
04:05
as well as geometry types.
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