This course provides a deeper exploration of mechanical assemblies and simulation, which are key engineering features of the design and manufacturing process. The foundation of engineering design is exploration and iteration. Design is rarely a perfectly linear and straightforward process. In this course, we'll explore mechanical assembly design and simulation, focusing on testing and improving design components and performance. As we move through design assumptions, testing, and refining design ideas, we'll come closer to a final design, while developing a deeper knowledge in Autodesk® Fusion 360™ for simulating and analyzing product functionality. After completing this course, you will be able to: • Describe the engineering design process and workflow in Fusion 360. • Summarize the trends that are influencing the design industry. • Demonstrate knowledge and skills in more advanced Fusion 360 CAD and simulation skills
Creating a distributed design
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Engineering Design Process with Autodesk Fusion 360
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Design Optimization
Just because a design looks complete, doesn’t mean that it’s done. Often times you will go through dozens of revisions before achieving the final result. We'll explore ways to optimize the strength and reduce the weight of our quadcopter design, and we'll pull from experience to help guide design decisions.
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Autodesk Education
In this lesson we'll learn how to create a distributed design.
After completing this lesson,
you'll be able to insert a component,
use move/copy, and use mirror feature.
With some basic edits done to the initial design,
it's now time to start making a more distributed design and bringing our components.
We want to make sure that the top level of our file is going to be active.
And this means that anything that we bring in is going to be under this top level,
not going to make any subcomponents under XStar or any of the motors.
We don't really need to see these right now,
but I'm going to go ahead and make sure that all four of these are in the file.
And you'll notice because we got rid of that carbon fiber material,
that these have all taken their original appearances.
Going to expand my data panel,
and I'm going to go into the components folder I created,
and I want to start bringing these components in.
Now, at this stage, some are going to be more critical than others and we will talk about
all these in specifics as well as some generalities.
But I want to first start by bringing in my micro CC3D flight controller.
So, we're going to drag this in and drop it into the canvas area.
Now once we do that, it's going to be the same process
as when we inserted the DYS motors.
It's going to come in. It's going to automatically open up move copy,
and if we go to a top view,
it's already centered on the origin.
We want to go to our front view and notice that it puts it at the bottom of our file.
This is because this is where origin is located where our top plane is.
So, we need to move it into a good location where we want its final mounting to be.
Now, you will remember when we talked about this initially in our course that
the flight controller works best if it's on the center of rotation of the craft.
Now, this means in our case,
we have a perfect X design.
So, the center of our craft or the center location between
all the motors is right here where we've drawn this X shape into the body.
So, this makes it really easy for us to find that location.
Just leave it exactly where it is in terms of its X and Z positioning,
and we simply want to adjust it in the Y.
So, as we look at it,
we're going to drag this up,
and we're going to pull it close to the upper edge of the body.
Now, we will be working on this design by
adding a secondary piece that holds all the components.
And the reason that we're doing this is because this allows us
to assemble everything and wire everything as a unit with the exception of the motors.
They obviously will have to be bolted to the this portion of the frame.
But it will make the assembly process that much easier.
So, it doesn't have to be in its final location at this point but we want to make
sure that we get it pretty close so that we can account for that area,
that volume that we need to take up.
So next let's rotate this around,
and note that we have an arrow on the design, right?
So the CC3D of any of
the flight controllers are going to have a direction they want to go.
So we're going to have to rotate this around 180 degrees,
and we can say okay.
Now, the reason the direction is important is because the controller
needs to know which direction is forward and backward when it's flying,
but it also affects us because all of
our connection points are going to be on the back section.
So let's go ahead and fit to screen,
save our file, but we will be adding a few more components.
The next thing that I want to insert here is going to be my HK-TR6A receiver.
Now, this is actually what gets the signal from
the ground station or from the person with the controller,
and the reason this is important is because most of
these wires go directly to our flight controller.
We have one flight controller wire that goes down
to our power distribution board to power it up.
But everything else from there is going to be servo control for
the camera or something directly from the receiver.
So, the receiver is going to have multiple cables and it plugs
into the side of our flight controller.
Let's go ahead and drag and drop this in.
And again follow the same process.
If we rotate this around to a front view,
again it's placed at the same location.
But in our case, this doesn't have to stay in this location.
We're going to go ahead and move it backwards.
Go to the front view,
move it up a bit.
Now again, we don't have to have it in its final location.
We just want to get it somewhere that we can account for it.
Now, in our case, the small wire here is actually where the antenna cable comes out,
and the black blocks on the top are where all the individual cables
are going to come out for the multiple channels on the receiver.
So that means that when we have throttle or if we pitch or yaw on the craft,
what we're going to do is we're actually going to be sending a signal that tells
the flight controller which thing we're adjusting.
So, I'm going to rotate this around 180 degrees so that the wire
that is our antenna faces out the back and we can zip tie it or attach it to the frame.
Let me go and pull this up just a little bit.
And again, we don't have to have in its final location,
just want to get it close for now so we can account for that.
We're going to carry on inserting other components.
Next, we're going to use the batteries because they're going to be a large portion
of the mass and it's going to be important that we have
the space for them and we locate them appropriately.
So the batteries will come in,
and if we look at these,
you can see where the power wires are coming out.
We're going to rotate this 90 degrees,
and I want to move it off to the side.
I'd like to have these mirrored across the midline.
Now, if I zoom out a little bit,
it might not be instantly easy to tell.
Maybe if we go to a bottom view,
we can tell a little bit better,
but the battery is centered on the origin as well.
We move it off to the right in the X direction,
but we are centered in Z.
And this is going to be important to make sure that
the overall balance of our craft is good.
Because, these are going to be 50 to 65 percent of the overall mass,
they're going to make the most impact,
the most critical change if we move them forward or backward into how this thing flies.
So we want to make sure that we keep it at a good location.
When we look at it from the front,
we want to make sure that we don't stay at this lower level
that we actually want to bring it up just a little bit.
Now, in this case, it might go up five millimeters,
and this gives me enough clearance from the ground that we can have a little bit of flex.
In this case, I'm actually going to go up 10 millimeters and noting
that we're not really interfering with anything at this point in time.
Again, this receiver is not supercritical,
it could go just about anywhere.
It's fairly light and its packaging is going to be
dependent on upon anything else that we throw in here.
So, once we're happy with that location,
I'm going to go ahead and say okay.
Then I'm going to go to create mirror.
And I want to mirror this component.
I want to take this,
and I want to mirror it across the right plane and
say okay because remember we are going to be using two.
Now, you can see here that we have a small gap in the middle of it.
I mean that's okay for now.
Again, we will be moving things around.
We just want to make sure that we get most of
the components situated where they need to be.
The next thing that we're going to have to bring in
is going to be the power distribution board.
Now, this is going to be critical because
the batteries are going to plug into the power distribution board,
and then all of the power going to
the ESCs or the electronic speed controllers
are going to come out of the power distribution board.
It's also going to be the hub for where we plug in the camera,
where we plug in the flight controller power,
where we plug in the transmitter for
the camera and even the video signal in this specific case.
So we want to make sure that we have this in a good location,
that we have enough space above and below it,
and that again that we can access it.
And again, I can't stress this enough,
we're getting these in a relative location to make sure that we can
account for some physical mass that we need to mount.
So, things are going to move around from here but we
just want to get them in roughly the right location.
And for right now,
I'm not too worried about the camera or the video module because
those two things are going to be very flexible in terms of their location.
They don't weigh as much as some of the other components.
The camera has to go in the front of it,
and the video portion of it is probably going to go in the back,
but the ESC is going to be the next critical component.
Now, there will actually be four of these, one for each motor.
So their location is going to be important in terms of the overall wiring.
Now again, we want to keep all the mass centered as possible.
And since we're going to have four of these,
we're going to put two on one side of the craft and two on the other.
And we want to keep them out of this area because we don't want
to obstruct the propeller.
We want to make sure that it gets enough free undisturbed air.
So, again I'm just going to simply place it in roughly the right location.
I'm going to go to modify,
move copy, and I want to copy this component.
And I'm going to say create copy,
and I'm simply going to move it off to the side for right now, and say okay.
I'm not going to worry about mirroring these to the other side like I
did the battery just yet until I have a more final location.
Let's go ahead and save the file.
So that way, we can move on to our next step.
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