>> This is a tutorial on lab number thirteen,
wide frame modeling, starting with an imperial drawing.
We start with a bottom, a rectangle starting at origin 0,
0 and then 4.5 comma zero and then 4.5 comma 3.5.
and then 0 comma 3.5.
and then to close the triangle let's just go
to the end of the starting line.
Then the next thing we do is we try to go to zoom 3D view,
I'm just going to check where we can simply go here
under view controls and select southeast imetric.
This will allow us to look at the object in 3D.
The next thing we do is we copy this rectangle on the bottom.
OK, initial base point is any of the corners and the displacement
at zero comma zero comma 2.7.
And we move up along the z by 2.7.
That's the copy.
And then using the line command, connect the corners
of the two rectangles here to here.
And then here to here.
Then, OK, the next command that we'll be using,
the autocat toolbar code, so you go to tools, toolbars, autoCAD,
objects snaps because we're going to be using the snap
from line, snap from, this snap from allows us
to identify this temporary point and then relative
to that we start at 1 comma 0 comma 0.
So the starting point is relative to that
and then the end point of the line is zero 3.5 comma zero.
There's an at in the beginning.
It just gives you the end of the other line.
One more snap from command is to illustrate it.
Line snap from allows you to temporary,
use the temporary origin.
And then relative to that point we're going to start at zero,
at zero comma 1.25 comma zero and it will move to the right
so it's one comma zero comma zero is the second
starting point.
Let's do that again.
Snap from.
This is out of origin now.
So relative to that we start at zero comma negative one point 25
in the y direction and z along z starting point on the line
and we just move relative to at one zero,
zero again to move to the right by one.
Then let's turn using this as boundaries, enter.
And click on the objects, all of the objects
that you want to trim away.
Moving in a little bit, focusing now on the bottom instead
of using the snap form I'm going to use a series of offsets.
Offset by one point five.
This line here in this direction.
That would locate the center of the circle in the bottom
and then another offset, this time at a distance of .6.
This bottom front line here in this direction and also going
in the back this direction.
And now for another copy of .6 here and another relative
to this line here at .6.
All of the lines are .6 inches apart.
And then I'll create the circle starting from the mid-point
of this line and a radius .55.
And it looks like it extended to those two lines.
That's correct.
So I'm going to create this lines here and here
and then do a series of trims using this, this,
line this line, and one more line as my cutting edges.
Press enter.
Trim this line, this line, this part here, this part here,
this part of the circle and also this part of this line,
turn this over and trim this away.
Enter. So it looks like I forgot another trim relative
to these two as my cutting edges.
Enter and trim this away.
And then erase those extra lines.
Now I'm going to copy the bottom profile of shape here.
All these lines here.
This line, OK, that one, enter, using any corner
of the base point and I'm going to move this up so at zero,
comma, zero comma .785.
Don't foget to add.
And then I'm going to create this connecting line,
this line here, from here to here,
repeat the line command from here to here.
Repeat again from here to here, here to here, also for the back
as well as the semi-circle from here to here
and from the end point to end point and then
from the mid-point here which is the quadrant to the mid-point
of the circle, the bottom, make sure it goes to that mid-point
and then I'm going to copy and trim this using those
and then erase the lines that I don't need.
This line here, this line here and this one I don't need.
I'm going to copy this line here.
There may be ways of doing this but I'm going to start
with copying this line here from the current position
as my base point back here on the left here.
Now if I attempt to trim these extra lines here even though
that is not going to work.
The reason the trim command only works when the lines,
the x and y are parallel to the x, y plane.
The x, y plane is horizontal
and those two lines will actually end
up front vertical plane.
So I'm going to need to change my UCS,
new UCS using three points.
Here's my origin.
Here's a point in the x axis and here's a point in the y axis.
Notice now that the xy plane is parallel
to the lines that I'm trimming.
So I'm trimming using this line and this line.
Both are stuck on the edges as well
as this two lines are cutting edges.
Press enter.
Now trim all the parts that I want to trim away.
It worked this time.
Because trim only works when the x y User Connect System, UCS,
is parallel to the plane of the line.
Now I'm going to re-position it to the next plane.
Here's the origin now.
Here's the x axis and here's the y axis.
Using the tools new UCS three points.
Cause I'm going to be working on this left plane.
So I'm going to use offset again.
Offset this line to this.
And then I'm going to use the orbit to make sure,
sometimes for SE isometric it's hard to see the object,
so we re-position it using the orbit.
And I'm going to make a line starting from this to this.
And I'm going to move that line.
There are many ways of doing this, from its current location,
say here and then move it relative to that,
so at zero along x I'm going to move it down along y by one
so it's minus one along y and zero along z, so that line move
down and I'm going to connect that corner
to that line that I just moved.
Repeat the line command again from here to here.
And then I can actually copy those three lines
that I just made here.
Position here at the base line.
Second position will be over here.
And then connect those points this,
the order I'm doing it may not be exactly the same order that's
shown in the handout.
Next thing I'm going to do a line command
from here, this line here.
That incline line and then at.
It's going to move downward by minus point,
along x by minus point five and downward by minus one.
Do the same thing here, starting from this point.
I could have used the snap from also.
So starting from this point, OK, to point five minus 10.
now these two lines here I'm going to use
to trim both of my cutting edges.
Press enter.
And I'm going to trim.
Let me copy those.
Copy from the current location
to this location here I'm copying.
And then trim using this line as my boundary.
Trim all this.
This one, this one, this one, that one, that one
and also this and this.
I'm done with trimming and erase this line that I don't need.
Then disconnecting lines here.
Repeat the line command for this and this and this one.
I'm just missing the cylindrical hole so I'm going to make,
I'm going to offset by a distance of .6 because it's 1.6
from the top, so minus one will be .6 that line to that line.
And then I'm going to make a circle here at the mid-point
of this line that I just offset by .6.
Then I'm going to copy that circle
from its current location here
to this new location and erase that line.
I'm going to connect the quadrants,
so I turn on the quadrant objects' map
so I can make the line connecting the quadrant here
from this circle to this quadrant.
So this would be four lines connecting.
Remember this is a wire frame model so these circles need
to be anchored by two, by four sets
of lines connecting the quadrants.
And then I still have those two extra lines.
I'm going to, oh, missing this line here
and then erase the two extra lines, one here and one here.
I think that's good now.
Let me, do SE isometric again.
It looks correct now.
Just to be sure because I'm going to orbit it again.
Rotate it a little bit, inspect,
make sure that all the parts are correct.
I think that we're done.
Now for part B, we're given the top and the front view.
This part here corresponds to the bottom of the figure here.
Whereas this part here corresponds to the back
over there so I will not show the actual solution
but this is how the 3D object would look like in a wire frame.
Just to show how it looks let's orbit again
and there's your 13B solution.