Draft and extrude surfaces

00:00

So I'll double-click to open the control window for Multi-surface Draft,

00:04

and initially it looks quite complex, but in fact it's one of the simplest tools to create basic extrusions.

00:10

So I'm using it initially in Draft mode;

00:13

and in Draft mode, we use this manipulator to decide which direction we want the surfaces to be built in.

00:20

Or, we can also use the control window.

00:22

And the length I can adjust here in the window or again, type in a value in the control window.

00:32

When working with Draft, there's two ways in which we can work with angles.

00:35

The first is to adjust this manipulator here, and you can see this changes the direction of the extrusion or the pull direction of a mold.

00:44

But, these edges remain parallel to each other.

00:48

The second way is to apply a draft angle.

00:51

So if I put in a value of 10 there and update that,

00:55

you can see that this now gets applied equally to all sides.

00:60

And if I just tumble that round into 3D,

01:03

I have an option here to tidy up sharp edges.

01:07

If I ask it to Intersect Flanges, that will tidy that up.

01:10

And it will do it if I Flip the angle here and go outwards as well.

01:15

So if I delete those two, and this time I will choose the Normal option.

01:22

Now if I try that on free curves, then I get no result

01:26

because the normal option has to calculate its direction from the surface that it's built from.

01:31

So for example, if I now take this plane and rotate it,

01:36

those draft surfaces are always built, in this case, 90° to the original surface.

01:43

If I Query Edit that, and I now switch that back to the Draft direction, and I'll just have an angle of 0,

01:52

then you can see that, regardless of how my plane is rotated,

01:56

that extrusion or draft direction is always going to be, in this case in the Z axis.