Create a motion link between 4 joints and animate them with a motion study.
After completing this practice exercise, you'll be able to:
Note: This micro drone is a sub-class of drones that is intended to be flown indoors. The total drone weight including all components and 3D printed parts ranges from 40-50g. The FAA requires that any drones flown in federally regulated airspace, above the weight of 250 grams (0.55lbs) and flow for recreation or commercial applications must register their drone and take a free online safety test to remain in compliance. If you build and fly your micro drone inside or within the confines of a drone specific safety cage, this is outside of federally regulated airspace and a drone license and registration should not be required. As a safety precaution you should check your local regulations to ensure there are no additional guidelines that must be followed.
Exercise
Transcript
00:01
This is a practice exercise video solution
00:06
for this practice We're going to start with a supply dataset. Micro class drone.
00:10
You can also use your own drone design if you wish.
00:13
The supplied data set contains rigid groups between all the rigid components
00:18
as well as some revolution joints for all the propellers.
00:22
You'll notice that they are listed as 123 and four as
00:25
well as clockwise and counterclockwise for their direction of rotation.
00:29
What we're going to do is we're going to create a motion link that
00:32
allows all of them to spend at the same time relative to each other
00:36
to do this. We're going to go to assemble and select motion link.
00:39
We need to select the joints.
00:41
So first we have propeller number one which is
00:44
going clockwise and propeller to which is counterclockwise,
00:47
we need to reverse the direction because
00:49
they will be spinning opposite directions.
00:52
We're going to right click to repeat this and this time
00:55
the joints are going to be one clockwise and three clockwise.
01:00
These are going to be spinning the same direction
01:03
and note that it also moves the original motion link
01:06
will say, okay,
01:08
right click and repeat this one more time.
01:10
This time we're going to go between one which
01:12
is clockwise and four which is counter clockwise.
01:14
This one needs to be reversed.
01:18
What we should see is that as we view this from the top.
01:21
If we rotate the top left one in the clockwise direction,
01:25
we should see that all of them are spinning towards the rounded end of the propeller
01:31
so we have clockwise in the upper left,
01:33
we have counter clockwise in the upper right and then we
01:35
also have the respective clockwise and
01:38
counterclockwise in the bottom propellers.
01:41
Next, we want to revert their position,
01:43
go back to a home view
01:45
and create a motion study
01:47
under, assemble at the very bottom. We can select motion study
01:50
and in this case we need to select a single joint which will be
01:53
joint one C. W.
01:56
From here, we can pick a time,
01:59
You'll notice that it's in increments of 20 steps on
02:02
the motion study timeline all the way up to 100.
02:05
So somewhere in the middle about 50, I'm going to pick 360° at step 50
02:11
one thing that we can do is we can play this backwards and forwards or we can loop it
02:16
when we select play, you'll notice everything is spinning relatively fast,
02:20
so let's go ahead and reduce the speed.
02:22
We can see that all the propellers are spinning as they should
02:26
and as the study goes,
02:27
you can see that it's repeating itself once it gets to step number 50
02:32
with this.
02:33
Now,
02:33
we could create a rendered image and the motion study
02:36
would be available to be rendered out as an animation.
02:39
This allows us to create a rendered animation of all the propeller spinning
02:43
from here. Let's make sure that we do save the design before moving on
00:01
This is a practice exercise video solution
00:06
for this practice We're going to start with a supply dataset. Micro class drone.
00:10
You can also use your own drone design if you wish.
00:13
The supplied data set contains rigid groups between all the rigid components
00:18
as well as some revolution joints for all the propellers.
00:22
You'll notice that they are listed as 123 and four as
00:25
well as clockwise and counterclockwise for their direction of rotation.
00:29
What we're going to do is we're going to create a motion link that
00:32
allows all of them to spend at the same time relative to each other
00:36
to do this. We're going to go to assemble and select motion link.
00:39
We need to select the joints.
00:41
So first we have propeller number one which is
00:44
going clockwise and propeller to which is counterclockwise,
00:47
we need to reverse the direction because
00:49
they will be spinning opposite directions.
00:52
We're going to right click to repeat this and this time
00:55
the joints are going to be one clockwise and three clockwise.
01:00
These are going to be spinning the same direction
01:03
and note that it also moves the original motion link
01:06
will say, okay,
01:08
right click and repeat this one more time.
01:10
This time we're going to go between one which
01:12
is clockwise and four which is counter clockwise.
01:14
This one needs to be reversed.
01:18
What we should see is that as we view this from the top.
01:21
If we rotate the top left one in the clockwise direction,
01:25
we should see that all of them are spinning towards the rounded end of the propeller
01:31
so we have clockwise in the upper left,
01:33
we have counter clockwise in the upper right and then we
01:35
also have the respective clockwise and
01:38
counterclockwise in the bottom propellers.
01:41
Next, we want to revert their position,
01:43
go back to a home view
01:45
and create a motion study
01:47
under, assemble at the very bottom. We can select motion study
01:50
and in this case we need to select a single joint which will be
01:53
joint one C. W.
01:56
From here, we can pick a time,
01:59
You'll notice that it's in increments of 20 steps on
02:02
the motion study timeline all the way up to 100.
02:05
So somewhere in the middle about 50, I'm going to pick 360° at step 50
02:11
one thing that we can do is we can play this backwards and forwards or we can loop it
02:16
when we select play, you'll notice everything is spinning relatively fast,
02:20
so let's go ahead and reduce the speed.
02:22
We can see that all the propellers are spinning as they should
02:26
and as the study goes,
02:27
you can see that it's repeating itself once it gets to step number 50
02:32
with this.
02:33
Now,
02:33
we could create a rendered image and the motion study
02:36
would be available to be rendered out as an animation.
02:39
This allows us to create a rendered animation of all the propeller spinning
02:43
from here. Let's make sure that we do save the design before moving on
