>> This is a tutorial on Lab number 11,
Primary Auxiliary Views.
Here's the figure given.
We're given the front view and the right side view
of this object, and we're asked
to create an auxiliary view corresponding
to this auxiliary reference plane, or ARP.
So, since it's projected out in the front view.
This is the front view.
This is a type of the auxiliary view.
So, the depth measures away from up here from the right side.
You should be the same depth that we're going to use
to locate the points in the auxiliary review.
And starting with this very distinctive plane here.
One, two, three, four, five, six, seven.
One and two are here.
Three, six, and seven can only be here.
And four and five long these lines.
I've labeled those points.
And now I'm going to project them using construction lines.
I'm going to copy this construction line perpendicular
to the ARP from its current location
to the locations pointing to the points one, two, three, four,
five, six, seven on that plane.
And focusing on that plane.
And then I'm going to borrow or measure the depths
from the frontal plane by using off set.
So, for point one, for instance,
point one is form this intersection
to this intersection or perpendicular
to the reference plane.
So, that made a copy.
That corresponds to the depth of point A, point one.
I'm going to do the same thing for two.
I'm going to off set.
Here's the location of point two.
So, the depth should be the distance
to the frontal reference plane.
Offset this frontal reference plane on this side.
Now I've located one and two.
As I locate points, I'm going to start creating object lines.
OK. It's based on the location of the points.
One is over here.
Whereas two is at the far offset and in the same projection.
So, this is point two.
And then I notice that point three is
over at the same offset as two.
So, I just continue the two.
But the three, however, four is different depth.
So, I offset again.
Location of four from this interception perpendicular
to this reference plane.
Copy this reference plane on this side.
Then I'm ready to connect three to four.
So, part the line again from three to four.
Four is the latest offset along this projection.
This is four.
And then I'm going to go to five.
I noticed that five, I don't have the offset for five yet.
So, I'll offset the dept for five.
By the way, we could have done all the offsets first before
connecting the line.
That's fine as well.
I just wanted to do it point by point.
Then I connect four to five.
It's along the same projection.
But this one is the offset.
So, this is five.
Now going to six is the same offset as five.
I go from the projection of six.
So, five is connected to six.
Seven is in the same projection,
but the offset is the same as one.
So, this must be seven here.
The offset for seven is the closest
of those lines that are offset.
And then seven is connected to one.
And I am done with that weird shaped one, two, three,
four, five, six, seven.
The next thing I am going to do is I'm going
to locate other points that I haven't projected.
So, I am going to back to the construction layer.
OK. From the front view, I'm going to project
by making a copy of this construction line
from its current location here to all the other points.
It looks like this one here is the same projection
as the one for one and two.
I'm going to make a copy over here and one more here.
And I see another point down here.
OK. So, I'm looking at other points now in addition
to the initial plane.
Now I'm going to focus on this skinny little plane here
that's vertical.
For instance, three should be directly below three prime.
And four is directly below four prime.
So, starting with four, four and five rather, this is four.
And directly below that is four prime based on the projection.
And then directly below five, we have five prime over here.
And then five prime is connected to five.
That's the [inaudible].
Now, there's another rectangle
on this side here in this location.
I'll do the same thing.
It's coming from here, which is six and below that is six prime.
I'll click on six prime.
Seven prime is directly below seven.
So, connected to seven.
That's the other skinny rectangle here.
Now, there's also one on top here.
I'm going to locate that before I forget.
That is going to be our example plane.
OK. Coming from one to that
and then one prime; the skinny rectangle up there.
You can call it whatever names you want.
And then this weird trapezoid here on the right.
I have to locate that.
The point over here. this point it's directly below three
and the offset of three.
So, this is below three.
And the opposite of three must be that point right there.
So, I am going to connect the line from the existing three
to the three prime, which is, again,
directly below the three along this projection.
Also, at the farthest offset line.
This is three prime.
And three prime is connected to four prime over here.
And then that is connected to four and then back to three.
So, I'm done with that.
Now I am going to focus on these other points down here.
OK. That is probably going to be hidden.
So, the one down here is directly below that
hidden line.
But this one, there should be a hidden line
and there should be another one over here.
So, I'm going to go
to the hidden layer here, hidden lines layer.
There's a hidden line coming from this corner here to here.
And then another one coming from here to here corresponding
to the bottom point of that plane.
I think I'm about done.
Let's just take a look at it.
I'm going to turn off the construction layer,
so I can see clearly.