It is really important to structure your sketches, Infusion 360, using certain parametric features.
We will look at two of these features in this video.
Dimensions and constraints.
Dimensions can be added to sketch objects in Fusion 360 while sketching or of sketching.
Here's how.
I will first show you how to enter the dimensions of your design while creating your sketch.
So let's create a two point rectangle first.
So there you go.
Now, as you can see, we have two pop ups here.
The Dimension four, the width of the rectangle is currently selected.
It's a 50mm.
I can change it here.
Let's say I want it to be 100mm.
And now to toggle to the other dimension, which is my length, I can hit tab and it automatically switches
to the other box.
I can now type in, let's say, 200 and hit enter.
So as you can see, our rectangle has been created and we have these two dimension pop ups here now.
Dimensions can also be added after you're done with your design.
So let's just create a rectangle without even thinking about the dimensions here.
Now I can go up here and click on Sketch Dimension.
So once I click on this, I am able to select any one line feels like this line.
And as you can see, we have another dimension pop up here, and let's say I want to change that to
150.
I can do that.
So that's how you can add dimension to the lines.
You can also add dimensions of angles, so let's say they create.
Two random lines here.
Now, what gets Dimension allows me to do is set the angle between these lines so I can select that
line first, followed by this line.
And as you can see, we have an angle dimension here.
I want the angle to be 45 degrees and fusion does that for us.
The third type of sketch dimension that is very useful is distance between lines.
So let's say I have two random lines here and I want the distance between them to be say Mm.
I can click on Sketch Dimension, select this line first, followed by this line.
And then click, as you can see, we have another dimension pop up here and I can Typekit follow.
And as you can see, these lines are now spaced and dimension of 40mm.
So that's it for this section.
Let's move, go to the next one that we talk about constraints.
Constraints, as the name suggests, are parameters to structure designs.
There are four main constraints we will look at, which are tangent, lock, parallel and perpendicular.
Let's take a look at these four important constraints individually.
You will first take a look at the constraint.
You can click it up here or go to the Constraints dropdown and select the tier.
Now I want to make this line your tangent to the circle, so I will select my circle first, followed
by the line.
And as you can see, our line is.
Automatically dragged down and made tangent to the circle.
The object you don't want to move, for example, I didn't want to move my circles in this case needs
to be selected first.
Our second constraint is the fixed constraint, so I can draw a random line here.
Now, see, I don't want to be able to move this line at all.
I can click on Fix Select Line and select both these points.
So now, as you can see, I just cannot move this line around.
Now, in order to unfixed this, click again and click on all three, and now you can see my line is
really.
Our third type of constraint is parallel lines.
I have two lines here, and I want to make the top one parallel to the bottom one.
So I will go to parallel.
Select the bottom one first, followed by the top one.
And as you can see, our two lines have been made parallel.
I can still move around this line, but as you can see, the gradient of the line will not change and
hence it'll remain parallel to the bottom line.
Our fourth type of constraint is perpendicular, so say I have two lines here.
I want to make this one particular look this one.
So I will click on this constraint up here.
Select this and then select the.
So as you can see, it is currently at a 90 degree angle from this one.
I can move it around.
But again, the gradient won't change and we have a perpendicular line.
So these are the four important constraints you need to know.
You can explore the others if you need them in your designs.
But as you start off with Fusion 360, these are the four ones that will be really important to you.
To end this video, I would like to say that I did not use constraints when I started off designing,
but I realized that it becomes much more important when you become more advanced.
Hence it's a really important concept to learn.
I will see you in the next video where we talk about construction canvasses and planes.