- [Instructor] For this video, we're going to be learning
about the circle command as well as some arcs.
So to get started, let's go ahead
and fire up a sketch on the front plane,
and here we go.
So the first thing we're going to look at is the circle command
and notice on the dropdown
you've got a regular circle as well as a perimeter circle.
So let's choose the first one there.
And wherever I click is going to be the center.
And where I drag out, I'm going to create the size
or defining what the radius of my circle is.
When I click again, it is making that circle
and notice that your icon is still a circle icon.
So anywhere I click again, it's going to keep making more
and more circles.
When you're done with making circles hit the Escape key
on your keyboard to turn that off.
All right, to jump back up into the circle command,
come back up here again.
You can look at these ones here.
And notice over here,
I also have the ability to switch
between the different styles of circles
by clicking on the other one here.
Or a shortcut for that is hitting a on your keyboard.
You can switch between the different styles
by hitting a on the keyboard.
All right, so on this one, which is a three point circle
so click where you want to want to start one point
and then click another point.
And then finally that third point
it's going to define where that circle is.
All right, click there.
And then once you've created a circle and it's still active,
you can switch to construction if you'd like to
or you can fix it, right?
If you fix it, it's going to be fully defined
and notice it shows up as black
because it's fixed in space
even though there's no dimensions
and you're tying it to the origin,
it does fix it in space
and that makes it fully defined.
Okay, the next thing we want to look at are arcs.
So right over here, you can look on the twirl down here.
You've got the center point arc, the tangent arc
and the three point arc.
So starting at the very top is the center point arc.
So click where you want the center to be.
Click where you want to start,
and then just drag this around the circle
to create how much of that arc you'd like to see.
And notice it gives you a little heads up display of as a,
so if you wanted a 35 degree arc
just go ahead and click there.
And you can also define it over here on the left,
if you actually want to type that value in.
Right over here is the a, you can type in 35
and you'll adjust the arc based upon that.
All right.
The next style of arc
is the tangent arc.
But before you can create a tangent arc
you need to have something to be tangent to.
So let's go ahead and create a regular line first.
So here's a line, let's drag it out
and now jump over here to the tangent arc.
So tangent arcs here,
starting at the end of my straight line,
I can draw out a tangent arc.
So it's always going to be tangent to the starting point
and I can define where I want to be.
Now, if you want that tangency not to come out
at the end of the line,
but you want to go back upon itself,
go back to that point and then come out the other way.
Right, so you just want to go back to the point
and then define how you want that tangency to come out.
So you can come out vertically, horizontally,
always going back to that point
and then defining where
and how you want that tangency to be defined.
So over here, I'm going to place a tangent point there.
And there's my shape.
And notice the tangency relationship
has been added here to the end.
Now, if you just have a regular line and a regular arc
you can also add that tangency point as well.
So a couple different options.
In fact, down here, I could grab that same tangent arc
and I could use that as a starting point as well.
So I can define my arc
based upon any number of these things,
and I can continue designing
or using tangent arcs as I go around my shape.
The next one is going to be the three point arc.
So over here I'm going to choose once where I want to start,
once where I want to end
and then I'm going to define what that radius is.
So I'm going to be moving that in and out.
And take it to the point where I like it, click, okay.
And there's my arc.
Now I can grab that arc
and I can move it around a little bit.
And I can also grab that center point
and I can move it around using that center point as well.
So a couple different options of how you can deal with
and move around arcs,
as well as circles inside of SolidWorks.