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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Learn to create assembly joints and motion links.
After completing this practice exercise, you’ll be able to:
Exercise
Transcript
00:02
This is a practice exercise video solution.
00:05
To get started,
00:06
we want to open the supply dataset,
00:08
Formulaarsteering.
00:09
F3D.
00:10
We're gonna begin by hiding the Formula car and focusing our
00:13
attention just on the FR suspension and the steering box.
00:17
In each of these cases,
00:18
we've got subcomponents,
00:20
and in some cases,
00:21
subcomponents are hidden,
00:22
focusing only on what is needed for this video.
00:25
We're gonna first begin by creating an as-built joint.
00:29
Remember that an as-built joint makes use of the component's current location.
00:33
Under as built joint,
00:34
we want to select the type as slider,
00:37
and we're gonna create a slider joint for the rack and pinion steering.
00:41
We're gonna have our steering component and the main steering box have
00:44
a slider joint that allows it to move along its axis.
00:48
We're gonna select OK,
00:49
and then we're gonna zoom back out by double clicking the mouse wheel.
00:53
Now we want to create a motion link between
00:55
that slider joint and the steering wheel movement.
00:58
To do this,
00:59
we're gonna go to the assemble menu and select motion link.
01:03
We can select the icons for the joints on the screen if they're displayed,
01:06
in this case for the slider joint and the revolute for the steering wheel.
01:10
In some cases,
01:11
you'll note that it may give you a warning,
01:13
and in that case,
01:14
we just need to make sure that it's not conflicting with any other movements.
01:18
We're going to allow it to go a distance
01:20
of 100 millimeters for every revolution and say,
01:23
OK.
01:24
Let's double check the motion.
01:26
We're gonna select the steering wheel
01:28
and we're gonna move it.
01:30
And note that it's allowing it to rotate the wheel left and right.
01:33
In some instances,
01:34
you may find that physical components such as
01:37
the steering links are gonna overlap other geometry,
01:40
such as the rim.
01:42
In some cases,
01:42
you may find that you want to add additional constraints or things like contact sets
01:47
to help prevent that movement.
01:49
We're gonna revert our position.
01:51
We're gonna go up to the top of our browser
01:53
and note that we've got contact sets listed here.
01:56
In this case,
01:57
this design already had contact sets enabled,
01:60
but if they weren't enabled,
02:01
you can do this from your assemble menu by selecting
02:04
enable all contacts or by creating a new contact set.
02:08
If you use Enable all contacts,
02:10
this will activate contact sets for all components in your assembly.
02:14
If you've got a large assembly like this,
02:16
you want to avoid doing that and focus only on specific components.
02:20
For our purposes,
02:21
we're going to right click on contact sets and select new contact set.
02:26
We'll select one of our steering links in the inside of our rim
02:29
and select OK.
02:32
Now if we rotate the steering wheel,
02:33
note that it's stopping the rotation
02:35
as it hits this link.
02:37
This is a great way for us to limit the motion of
02:39
our assemblies by using contact sets as a final stopping point.
02:44
In many cases,
02:45
joints and asbit joints can be used to allow us to replicate mechanical motion.
02:50
But in some cases,
02:51
we may need to use motion links to create a relationship between joints
02:55
and contact sets to stop solid bodies
02:58
from physically contacting other solid bodies.
03:02
Let's go ahead and bring the rest of the formula car back,
03:04
double click the mouse wheel so that way we can see it on screen,
03:07
and go back to the home view
03:08
before saving and moving on.
Video transcript
00:02
This is a practice exercise video solution.
00:05
To get started,
00:06
we want to open the supply dataset,
00:08
Formulaarsteering.
00:09
F3D.
00:10
We're gonna begin by hiding the Formula car and focusing our
00:13
attention just on the FR suspension and the steering box.
00:17
In each of these cases,
00:18
we've got subcomponents,
00:20
and in some cases,
00:21
subcomponents are hidden,
00:22
focusing only on what is needed for this video.
00:25
We're gonna first begin by creating an as-built joint.
00:29
Remember that an as-built joint makes use of the component's current location.
00:33
Under as built joint,
00:34
we want to select the type as slider,
00:37
and we're gonna create a slider joint for the rack and pinion steering.
00:41
We're gonna have our steering component and the main steering box have
00:44
a slider joint that allows it to move along its axis.
00:48
We're gonna select OK,
00:49
and then we're gonna zoom back out by double clicking the mouse wheel.
00:53
Now we want to create a motion link between
00:55
that slider joint and the steering wheel movement.
00:58
To do this,
00:59
we're gonna go to the assemble menu and select motion link.
01:03
We can select the icons for the joints on the screen if they're displayed,
01:06
in this case for the slider joint and the revolute for the steering wheel.
01:10
In some cases,
01:11
you'll note that it may give you a warning,
01:13
and in that case,
01:14
we just need to make sure that it's not conflicting with any other movements.
01:18
We're going to allow it to go a distance
01:20
of 100 millimeters for every revolution and say,
01:23
OK.
01:24
Let's double check the motion.
01:26
We're gonna select the steering wheel
01:28
and we're gonna move it.
01:30
And note that it's allowing it to rotate the wheel left and right.
01:33
In some instances,
01:34
you may find that physical components such as
01:37
the steering links are gonna overlap other geometry,
01:40
such as the rim.
01:42
In some cases,
01:42
you may find that you want to add additional constraints or things like contact sets
01:47
to help prevent that movement.
01:49
We're gonna revert our position.
01:51
We're gonna go up to the top of our browser
01:53
and note that we've got contact sets listed here.
01:56
In this case,
01:57
this design already had contact sets enabled,
01:60
but if they weren't enabled,
02:01
you can do this from your assemble menu by selecting
02:04
enable all contacts or by creating a new contact set.
02:08
If you use Enable all contacts,
02:10
this will activate contact sets for all components in your assembly.
02:14
If you've got a large assembly like this,
02:16
you want to avoid doing that and focus only on specific components.
02:20
For our purposes,
02:21
we're going to right click on contact sets and select new contact set.
02:26
We'll select one of our steering links in the inside of our rim
02:29
and select OK.
02:32
Now if we rotate the steering wheel,
02:33
note that it's stopping the rotation
02:35
as it hits this link.
02:37
This is a great way for us to limit the motion of
02:39
our assemblies by using contact sets as a final stopping point.
02:44
In many cases,
02:45
joints and asbit joints can be used to allow us to replicate mechanical motion.
02:50
But in some cases,
02:51
we may need to use motion links to create a relationship between joints
02:55
and contact sets to stop solid bodies
02:58
from physically contacting other solid bodies.
03:02
Let's go ahead and bring the rest of the formula car back,
03:04
double click the mouse wheel so that way we can see it on screen,
03:07
and go back to the home view
03:08
before saving and moving on.
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