& 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
Transcript
00:00
Sketching.
00:02
After completing this lecture,
00:03
you'll be able to
00:05
understand sketches in fusion,
00:06
identify sketch elements,
00:08
and identify sketch display option.
00:10
What are sketches and where are they used?
00:13
Sketches are the foundation from which you create things like solids,
00:16
surfaces,
00:17
and even T spline bodies.
00:19
Sketches are parametrically defined by things like dimensions and constraints,
00:23
but can also contain references to other geometry,
00:26
things like a selected point,
00:28
edge,
00:28
or a face.
00:30
Sketches can also be in 2D or 3D and used to build geometry,
00:34
trim or split geometry,
00:36
and even used to contain things like CNC tool paths.
00:40
Sketch element identification.
00:42
When we're creating sketches in Fusion 360,
00:44
the display of those sketch entities will help us identify
00:48
whether or not they need a dimension or constraint,
00:50
whether or not they're construction.
00:52
Keep in mind that there are a couple of other ways that we
00:55
can see sketch entities displayed if they're
00:57
projected from another sketch and construction,
00:60
for example,
01:01
but we're gonna cover the most common ways that we'll see sketch entities.
01:04
First is fully defined.
01:06
A fully defined sketch entity will be displayed as black.
01:09
This means that it is fixed in space
01:11
and it's fully defined with dimensions and constraints.
01:15
An underdefined sketch entity will be displayed in blue.
01:19
Sketch dimensions will be displayed next to the entity that they're referencing.
01:23
Now,
01:23
in most cases,
01:24
you'll see these as a few different types.
01:26
We'll have diameter and radius dimensions for things like circles and arcs,
01:30
and we'll have linear or aligned dimensions for things like rectangular edges.
01:35
Sketch constraints will help us define the relationship
01:38
of that sketch entity to other geometry.
01:40
In this case,
01:41
we're looking at a horizontal vertical constraint.
01:44
This tells us that this line is horizontal,
01:46
and even though it's displayed in black,
01:48
its end points are not fully defined because
01:50
of the large circle that it's referencing.
01:53
And last,
01:54
we have construction.
01:55
Any sketch entity can be converted to or from construction.
01:59
This will change not only its display,
02:01
but also its color.
02:02
If it's an underdefined line,
02:04
it'll be displayed as a dashed orange line.
02:06
If it's a fully defined construction line,
02:08
it'll be displayed as dashed in black.
02:12
Where can you create a 2D sketch?
02:14
The most common place to get started in a design
02:16
infusion 360 is by using one of the default planes.
02:20
These are inside of every new untitled document inside of the origin folder.
02:25
Next,
02:25
we can use those default planes,
02:27
axes,
02:27
and other entities to create a construction plane.
02:30
The construction planes can be used to create a new 2D sketch.
02:35
And the last place that you'll be using to create
02:36
a new sketch is going to be a planer face.
02:39
The planar face can belong to a solid or a surface body,
02:42
and as long as it's plainer,
02:44
it can be used to start a new sketch.
02:46
Keep in mind that by default,
02:48
using a planar face will also project its external geometry.
02:52
This means that you'll already have a close profile inside of your 2D sketch.
02:57
What are some common sketch entities?
02:60
We're not gonna cover every sketch entity,
03:01
but some of the most common ones that you'll be using are things like lines,
03:05
rectangles,
03:06
circles,
03:07
arcs,
03:08
polygons,
03:09
slots,
03:11
splits,
03:11
and text.
03:13
Notice that with each of these,
03:15
some of them have default constraints that are applied.
03:18
For example,
03:19
when you apply a line that is horizontal,
03:21
it'll have that horizontal constraint applied.
03:24
Things like rectangles have a couple of options.
03:27
A center point rectangle will allow you to create
03:29
a rectangle that has two construction lines inside of it
03:32
and reference a center point.
03:34
You also note that things like slots already have a construction line at the center.
03:40
Not every sketch entity will automatically populate
03:43
a constraint or include construction geometry,
03:46
but some of them do,
03:47
and as you get more comfortable creating sketches,
03:49
you'll become more comfortable in deciding which of these sketch
03:52
entities you want to use to start your sketch.
03:55
How are sketches defined?
03:57
There are two main ways in which we'll define a sketch dimensions and constraints.
04:02
Dimensions provide a numerical input for the
04:04
length and location of a sketch entity.
04:07
Constraints define the relationship of a sketch entity relative
04:10
to other geometry or the construction planes in origin.
04:14
As you begin creating sketches,
04:15
you'll need to think about your design intent.
04:18
Design intent is looking at how things in your design are gonna update downstream.
04:23
You'll need to think about whether or not dimensions or constraints or a
04:26
combination of both of those is going to be the best option.
04:30
What display options are available?
04:33
Any time you start a new sketch,
04:35
the sketch palette will be displayed on the right hand side.
04:38
This will contain options for the specific
04:40
sketch entity that you're currently using.
04:43
For example,
04:43
in our sketch palette,
04:44
we see that we have some rectangle options.
04:47
This is a corner point rectangle,
04:49
a center point rectangle,
04:50
and a 3 point,
04:51
which allows us to create a rectangle at some specified angle.
04:55
And during that sketch,
04:56
the palette provides other options for features or sketch visualization,
04:60
things like toggling a sketch between construction entities,
05:03
looking at to view a sketch plane from a normal direction,
05:07
toggling on and off grid and display options,
05:09
and even creating a 3D sketch.
05:12
What is 3D sketching?
05:15
Creating a sketch in 3D allows the users to
05:17
generate complex curves for use with surface creation,
05:20
sweet paths,
05:21
or even general geometry creation.
05:26
but not all features.
05:28
For example,
05:28
a closed profile is required to create a solid extrude,
05:32
and a 2D closed profile is required to create a loft.
05:38
but it's something that is available in Fusion 360
05:41
as a toggle option inside of the sketch palette.
05:45
So in conclusion,
05:47
sketches are used to define nearly all geometry created in CAT.
05:51
Sketch definitions should be meaningful with dimensions and constraints
05:54
to aid in feature creation and geometry updates.
05:58
Sketches can be updated and edited at any point in time,
06:02
and features created from a sketch or sketches will maintain a link.
06:06
Sketches are a part of the 3D modeling process and something that
06:09
you should spend the time and make sure that you're comfortable with,
06:12
as it will greatly impact the rest of your 3D designs.
00:00
Sketching.
00:02
After completing this lecture,
00:03
you'll be able to
00:05
understand sketches in fusion,
00:06
identify sketch elements,
00:08
and identify sketch display option.
00:10
What are sketches and where are they used?
00:13
Sketches are the foundation from which you create things like solids,
00:16
surfaces,
00:17
and even T spline bodies.
00:19
Sketches are parametrically defined by things like dimensions and constraints,
00:23
but can also contain references to other geometry,
00:26
things like a selected point,
00:28
edge,
00:28
or a face.
00:30
Sketches can also be in 2D or 3D and used to build geometry,
00:34
trim or split geometry,
00:36
and even used to contain things like CNC tool paths.
00:40
Sketch element identification.
00:42
When we're creating sketches in Fusion 360,
00:44
the display of those sketch entities will help us identify
00:48
whether or not they need a dimension or constraint,
00:50
whether or not they're construction.
00:52
Keep in mind that there are a couple of other ways that we
00:55
can see sketch entities displayed if they're
00:57
projected from another sketch and construction,
00:60
for example,
01:01
but we're gonna cover the most common ways that we'll see sketch entities.
01:04
First is fully defined.
01:06
A fully defined sketch entity will be displayed as black.
01:09
This means that it is fixed in space
01:11
and it's fully defined with dimensions and constraints.
01:15
An underdefined sketch entity will be displayed in blue.
01:19
Sketch dimensions will be displayed next to the entity that they're referencing.
01:23
Now,
01:23
in most cases,
01:24
you'll see these as a few different types.
01:26
We'll have diameter and radius dimensions for things like circles and arcs,
01:30
and we'll have linear or aligned dimensions for things like rectangular edges.
01:35
Sketch constraints will help us define the relationship
01:38
of that sketch entity to other geometry.
01:40
In this case,
01:41
we're looking at a horizontal vertical constraint.
01:44
This tells us that this line is horizontal,
01:46
and even though it's displayed in black,
01:48
its end points are not fully defined because
01:50
of the large circle that it's referencing.
01:53
And last,
01:54
we have construction.
01:55
Any sketch entity can be converted to or from construction.
01:59
This will change not only its display,
02:01
but also its color.
02:02
If it's an underdefined line,
02:04
it'll be displayed as a dashed orange line.
02:06
If it's a fully defined construction line,
02:08
it'll be displayed as dashed in black.
02:12
Where can you create a 2D sketch?
02:14
The most common place to get started in a design
02:16
infusion 360 is by using one of the default planes.
02:20
These are inside of every new untitled document inside of the origin folder.
02:25
Next,
02:25
we can use those default planes,
02:27
axes,
02:27
and other entities to create a construction plane.
02:30
The construction planes can be used to create a new 2D sketch.
02:35
And the last place that you'll be using to create
02:36
a new sketch is going to be a planer face.
02:39
The planar face can belong to a solid or a surface body,
02:42
and as long as it's plainer,
02:44
it can be used to start a new sketch.
02:46
Keep in mind that by default,
02:48
using a planar face will also project its external geometry.
02:52
This means that you'll already have a close profile inside of your 2D sketch.
02:57
What are some common sketch entities?
02:60
We're not gonna cover every sketch entity,
03:01
but some of the most common ones that you'll be using are things like lines,
03:05
rectangles,
03:06
circles,
03:07
arcs,
03:08
polygons,
03:09
slots,
03:11
splits,
03:11
and text.
03:13
Notice that with each of these,
03:15
some of them have default constraints that are applied.
03:18
For example,
03:19
when you apply a line that is horizontal,
03:21
it'll have that horizontal constraint applied.
03:24
Things like rectangles have a couple of options.
03:27
A center point rectangle will allow you to create
03:29
a rectangle that has two construction lines inside of it
03:32
and reference a center point.
03:34
You also note that things like slots already have a construction line at the center.
03:40
Not every sketch entity will automatically populate
03:43
a constraint or include construction geometry,
03:46
but some of them do,
03:47
and as you get more comfortable creating sketches,
03:49
you'll become more comfortable in deciding which of these sketch
03:52
entities you want to use to start your sketch.
03:55
How are sketches defined?
03:57
There are two main ways in which we'll define a sketch dimensions and constraints.
04:02
Dimensions provide a numerical input for the
04:04
length and location of a sketch entity.
04:07
Constraints define the relationship of a sketch entity relative
04:10
to other geometry or the construction planes in origin.
04:14
As you begin creating sketches,
04:15
you'll need to think about your design intent.
04:18
Design intent is looking at how things in your design are gonna update downstream.
04:23
You'll need to think about whether or not dimensions or constraints or a
04:26
combination of both of those is going to be the best option.
04:30
What display options are available?
04:33
Any time you start a new sketch,
04:35
the sketch palette will be displayed on the right hand side.
04:38
This will contain options for the specific
04:40
sketch entity that you're currently using.
04:43
For example,
04:43
in our sketch palette,
04:44
we see that we have some rectangle options.
04:47
This is a corner point rectangle,
04:49
a center point rectangle,
04:50
and a 3 point,
04:51
which allows us to create a rectangle at some specified angle.
04:55
And during that sketch,
04:56
the palette provides other options for features or sketch visualization,
04:60
things like toggling a sketch between construction entities,
05:03
looking at to view a sketch plane from a normal direction,
05:07
toggling on and off grid and display options,
05:09
and even creating a 3D sketch.
05:12
What is 3D sketching?
05:15
Creating a sketch in 3D allows the users to
05:17
generate complex curves for use with surface creation,
05:20
sweet paths,
05:21
or even general geometry creation.
05:26
but not all features.
05:28
For example,
05:28
a closed profile is required to create a solid extrude,
05:32
and a 2D closed profile is required to create a loft.
05:38
but it's something that is available in Fusion 360
05:41
as a toggle option inside of the sketch palette.
05:45
So in conclusion,
05:47
sketches are used to define nearly all geometry created in CAT.
05:51
Sketch definitions should be meaningful with dimensions and constraints
05:54
to aid in feature creation and geometry updates.
05:58
Sketches can be updated and edited at any point in time,
06:02
and features created from a sketch or sketches will maintain a link.
06:06
Sketches are a part of the 3D modeling process and something that
06:09
you should spend the time and make sure that you're comfortable with,
06:12
as it will greatly impact the rest of your 3D designs.
After completing this video, you’ll be able to:
Lecture