& Construction

Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing

Professional CAD/CAM tools built on Inventor and AutoCAD
Transcript
00:02
How to create a 3D sketch.
00:05
After completing this video,
00:06
you'll be able to
00:08
enable 3D sketching,
00:09
create a sketch in 3D,
00:11
include 3D geometry and project geometry,
00:14
as well as create an intersection curve.
00:18
To get started,
00:18
we want to open the supplied data set 3D sketching.
00:21
F3D.
00:23
This design contains a single sketch as well as
00:25
a couple features to create a complex shape.
00:28
We're gonna be using this shape while we learn to create a 3D sketch.
00:32
To get started,
00:33
let's first begin by selecting create sketch,
00:36
and let's hold the left mouse button down to
00:38
make sure that we're selecting the XZ plane.
00:41
When we select the XC plane,
00:43
we're now creating what's called a 2D sketch.
00:46
By default,
00:47
all sketches in fusion have the ability to create 3D elements.
00:51
First,
00:51
let's take a look at the Create menu,
00:53
and under Project Include,
00:55
note that we can project geometry into our current sketch plane.
00:58
We can intersect,
00:59
which will create a curve relative to the sketch plane.
01:03
We can also include 3D geometry,
01:05
project a surface,
01:06
and create an intersection curve.
01:09
First,
01:09
let's take a look at the intersect option.
01:12
To see how this works,
01:13
let's go ahead and use the body's option
01:15
and select the entire body and say,
01:17
OK.
01:18
As we rotate this around,
01:20
you can see fusion has created a curve that goes all the way around our solid body,
01:24
as it's cut by our section or sketch plane.
01:28
We also have the option to turn on slice,
01:30
which is a graphical option inside of a sketch.
01:33
We can see here that the intersection curve
01:35
matches our temporary slice or section plane.
01:39
Let's turn slice back off.
01:41
Next,
01:42
let's take a look at the Create Project Include menu and use include 3D geometry.
01:47
When we include 3D geometry,
01:49
this is going to allow us to create 3D sketch entities inside of a 2D sketch.
01:54
By selecting those geometries,
01:56
you can see that they're in our sketch,
01:57
however,
01:58
they're not on our sketch plane.
01:60
Even though we're still in a 2D sketch,
02:02
we do have the ability to include 3D geometry without actually creating a 3D sketch.
02:08
Next,
02:09
let's toggle on the 3D sketch option inside of our sketch palette.
02:13
When we do this,
02:14
let's pull our model off to the left,
02:15
and let's start with the line tool.
02:18
We're gonna make our first selection at the bottom center of
02:20
our part and begin to drag out to the right.
02:23
We can see that this coordinate system icon travels with us.
02:27
Currently we're sketching in the XY plane.
02:30
If we hover over any of the other plane icons,
02:33
you can see that a hand icon appears,
02:35
allowing us to change which plane we're sketching in.
02:38
Now we're traveling in a different axis.
02:41
Currently,
02:41
it's listed as Z axis,
02:43
but this is our default XY plane.
02:46
We can move back and forth using standard constraints such as perpendicular,
02:50
and then we can pick another plane whenever we need to change directions.
02:54
Let's go ahead and hit escape to get off of our line tool.
02:57
As we rotate this model around,
02:59
we can see that our sketch lines are built in 3D.
03:02
Using 3D sketches for standard lines that go along the X,
03:06
Y,
03:07
or Z axis is a great use case,
03:09
especially when we're talking about making things like paths for sweeps.
03:13
We can come back with modification tools like fill it
03:16
and round corners for all of these different intersections.
03:20
There are some more complex ways in which we can use 3D sketches,
03:24
such as creating a spine.
03:26
Oftentimes when we create splines in 3D,
03:29
we want to start by creating them in 2D
03:31
and then we'll use the modify move copy command
03:34
to select points that we want to move in 3D.
03:37
The move copy command also can work by activating handles.
03:41
If we select geometry and select the handle,
03:44
then use move copy,
03:45
which is M on the keyboard.
03:47
It allows us to select the handle and change the curvature.
03:51
This process is very complex and it's oftentimes much easier for
03:55
us to create 2D curves and project them into 3D.
03:58
Let's go ahead and finish this sketch,
04:00
expand our sketch folder and hide sketch too.
04:04
Let's go ahead and hide the body as well.
04:06
Let's start by creating a couple of 2D sketches.
04:09
On the front plane,
04:10
we want to create a new sketch,
04:11
turning off our 3D sketch option.
04:14
We'll start with a simple spine and just give it some curvature.
04:20
Next,
04:20
we're gonna create another sketch this time on the top plane.
04:25
Once again,
04:25
we'll create a spline,
04:27
and this time we're going to create another simple spline with just a couple clicks.
04:32
For us to make an intersection curve where these two meet in 3D,
04:36
we need to create yet another third sketch.
04:39
We can pick any sketch plane that we want.
04:42
And then we'll go into our create,
04:44
project,
04:44
include,
04:45
and create an intersection curve.
04:48
For this,
04:48
we need our curve inputs.
04:50
Now these can be curves on the faces of bodies,
04:53
or we can do a curve curve intersection.
04:56
When we say OK,
04:57
what we've done is we've generated the intersection of both of those curves in 3D.
05:02
If we think about this in terms of geometry,
05:04
this is the extension of a curve normal to its sketch plane.
05:08
And if we were to repeat the extrude the other curve normal to each sketch plane.
05:14
And then an intersection curve where those two surfaces meet.
05:18
So oftentimes when trying to create complex curves in 3D,
05:22
using this 2D projection method is a much easier scenario.
05:26
However,
05:26
note that we had to create 3 individual sketches to be able to make this happen,
05:31
while using the spine in 3D could happen all in a single sketch.
05:36
Playing around with these options is an important part
05:38
of learning to work with 3D sketches and fusion.
05:41
So you will need to take a little bit of time to better understand them.
05:45
Let's go ahead and show Body one once more,
05:48
and let's start yet another sketch.
05:50
This time,
05:50
I'm gonna select this tapered plane.
05:53
And then I want to take a look at myre,
05:55
project include options,
05:57
and note that we have project.
05:59
Unlike a traditional 3D sketch where we're including 3D geometry,
06:03
using the project option is going to push any selected geometry
06:07
onto our current sketch plane.
06:09
So,
06:10
while this does allow us to select 3D geometry that's not on our sketch plane,
06:14
it's gonna be projecting it to our 2D sketch plane to create a 2D sketch geometry.
06:20
So all of these tools in conjunction with each
06:22
other can be used to create very complex designs,
06:26
but it does take a bit of practice to better understand how to use 3D sketches.
06:31
Once you're done playing around with this file,
06:32
if you want to continue to use it,
06:34
go ahead and save before moving on to the next section.
00:02
How to create a 3D sketch.
00:05
After completing this video,
00:06
you'll be able to
00:08
enable 3D sketching,
00:09
create a sketch in 3D,
00:11
include 3D geometry and project geometry,
00:14
as well as create an intersection curve.
00:18
To get started,
00:18
we want to open the supplied data set 3D sketching.
00:21
F3D.
00:23
This design contains a single sketch as well as
00:25
a couple features to create a complex shape.
00:28
We're gonna be using this shape while we learn to create a 3D sketch.
00:32
To get started,
00:33
let's first begin by selecting create sketch,
00:36
and let's hold the left mouse button down to
00:38
make sure that we're selecting the XZ plane.
00:41
When we select the XC plane,
00:43
we're now creating what's called a 2D sketch.
00:46
By default,
00:47
all sketches in fusion have the ability to create 3D elements.
00:51
First,
00:51
let's take a look at the Create menu,
00:53
and under Project Include,
00:55
note that we can project geometry into our current sketch plane.
00:58
We can intersect,
00:59
which will create a curve relative to the sketch plane.
01:03
We can also include 3D geometry,
01:05
project a surface,
01:06
and create an intersection curve.
01:09
First,
01:09
let's take a look at the intersect option.
01:12
To see how this works,
01:13
let's go ahead and use the body's option
01:15
and select the entire body and say,
01:17
OK.
01:18
As we rotate this around,
01:20
you can see fusion has created a curve that goes all the way around our solid body,
01:24
as it's cut by our section or sketch plane.
01:28
We also have the option to turn on slice,
01:30
which is a graphical option inside of a sketch.
01:33
We can see here that the intersection curve
01:35
matches our temporary slice or section plane.
01:39
Let's turn slice back off.
01:41
Next,
01:42
let's take a look at the Create Project Include menu and use include 3D geometry.
01:47
When we include 3D geometry,
01:49
this is going to allow us to create 3D sketch entities inside of a 2D sketch.
01:54
By selecting those geometries,
01:56
you can see that they're in our sketch,
01:57
however,
01:58
they're not on our sketch plane.
01:60
Even though we're still in a 2D sketch,
02:02
we do have the ability to include 3D geometry without actually creating a 3D sketch.
02:08
Next,
02:09
let's toggle on the 3D sketch option inside of our sketch palette.
02:13
When we do this,
02:14
let's pull our model off to the left,
02:15
and let's start with the line tool.
02:18
We're gonna make our first selection at the bottom center of
02:20
our part and begin to drag out to the right.
02:23
We can see that this coordinate system icon travels with us.
02:27
Currently we're sketching in the XY plane.
02:30
If we hover over any of the other plane icons,
02:33
you can see that a hand icon appears,
02:35
allowing us to change which plane we're sketching in.
02:38
Now we're traveling in a different axis.
02:41
Currently,
02:41
it's listed as Z axis,
02:43
but this is our default XY plane.
02:46
We can move back and forth using standard constraints such as perpendicular,
02:50
and then we can pick another plane whenever we need to change directions.
02:54
Let's go ahead and hit escape to get off of our line tool.
02:57
As we rotate this model around,
02:59
we can see that our sketch lines are built in 3D.
03:02
Using 3D sketches for standard lines that go along the X,
03:06
Y,
03:07
or Z axis is a great use case,
03:09
especially when we're talking about making things like paths for sweeps.
03:13
We can come back with modification tools like fill it
03:16
and round corners for all of these different intersections.
03:20
There are some more complex ways in which we can use 3D sketches,
03:24
such as creating a spine.
03:26
Oftentimes when we create splines in 3D,
03:29
we want to start by creating them in 2D
03:31
and then we'll use the modify move copy command
03:34
to select points that we want to move in 3D.
03:37
The move copy command also can work by activating handles.
03:41
If we select geometry and select the handle,
03:44
then use move copy,
03:45
which is M on the keyboard.
03:47
It allows us to select the handle and change the curvature.
03:51
This process is very complex and it's oftentimes much easier for
03:55
us to create 2D curves and project them into 3D.
03:58
Let's go ahead and finish this sketch,
04:00
expand our sketch folder and hide sketch too.
04:04
Let's go ahead and hide the body as well.
04:06
Let's start by creating a couple of 2D sketches.
04:09
On the front plane,
04:10
we want to create a new sketch,
04:11
turning off our 3D sketch option.
04:14
We'll start with a simple spine and just give it some curvature.
04:20
Next,
04:20
we're gonna create another sketch this time on the top plane.
04:25
Once again,
04:25
we'll create a spline,
04:27
and this time we're going to create another simple spline with just a couple clicks.
04:32
For us to make an intersection curve where these two meet in 3D,
04:36
we need to create yet another third sketch.
04:39
We can pick any sketch plane that we want.
04:42
And then we'll go into our create,
04:44
project,
04:44
include,
04:45
and create an intersection curve.
04:48
For this,
04:48
we need our curve inputs.
04:50
Now these can be curves on the faces of bodies,
04:53
or we can do a curve curve intersection.
04:56
When we say OK,
04:57
what we've done is we've generated the intersection of both of those curves in 3D.
05:02
If we think about this in terms of geometry,
05:04
this is the extension of a curve normal to its sketch plane.
05:08
And if we were to repeat the extrude the other curve normal to each sketch plane.
05:14
And then an intersection curve where those two surfaces meet.
05:18
So oftentimes when trying to create complex curves in 3D,
05:22
using this 2D projection method is a much easier scenario.
05:26
However,
05:26
note that we had to create 3 individual sketches to be able to make this happen,
05:31
while using the spine in 3D could happen all in a single sketch.
05:36
Playing around with these options is an important part
05:38
of learning to work with 3D sketches and fusion.
05:41
So you will need to take a little bit of time to better understand them.
05:45
Let's go ahead and show Body one once more,
05:48
and let's start yet another sketch.
05:50
This time,
05:50
I'm gonna select this tapered plane.
05:53
And then I want to take a look at myre,
05:55
project include options,
05:57
and note that we have project.
05:59
Unlike a traditional 3D sketch where we're including 3D geometry,
06:03
using the project option is going to push any selected geometry
06:07
onto our current sketch plane.
06:09
So,
06:10
while this does allow us to select 3D geometry that's not on our sketch plane,
06:14
it's gonna be projecting it to our 2D sketch plane to create a 2D sketch geometry.
06:20
So all of these tools in conjunction with each
06:22
other can be used to create very complex designs,
06:26
but it does take a bit of practice to better understand how to use 3D sketches.
06:31
Once you're done playing around with this file,
06:32
if you want to continue to use it,
06:34
go ahead and save before moving on to the next section.
After completing this video, you'll be able to:
Step-by-step guide