AboutCAD: Differences Between Extrude, Revolve and Presspull

Many ways to create 3D objects, among the functions of command "Extrude", "Revolve" and "Presspull", each has advantages and disadvantages depending on the requirements and techniques in use, and depending on the object that will do you.

3D objects are generally derived from 2D objects, then extrude do with technique, or presspull Revolve, a special command presspull present only in the latest version of Autocad version, but if extrude and Revolve has existed on older versions.

This is characteristic of each function.

"Extrude"

    1. Extrude an object that will have to form a single entity, eg rectang, ellipse or circle.
    2. Objects that have not been a single entity, must first be done pedit or region.
    3. Extrude can be done against an irregular object, or a complicated shape.
    4. Extrude can be done by following the desired line (path), examples of hurus "S".
    5. Could form the slope (taper) when the extrude.

Figure 1.

2D objects that extrude and extrude in the taper.

"Revolve"

    1. Extrude an object that will have to form a single entity, eg rectang, ellipse or circle.
    2. Objects that have not been a single entity, must first be done pedit or region.
    3. It is suitable for forming objects such as bottles, glass or tire and rim.
    4. Revolve can be done to the axis "X" and "Y"

Figure 2.
Revolve 2D Objects in the axis X or Y and to help lines.
"Presspull"

1. Can be done on an object that has not been a single entity.
2. Can make holes (press) or to make things stand out (pull).

Figure 3.
2D object in the middle gap presspull select objects.

Figure 4.
3D objects in the press and that the full.

Wednesday, September 28, 2011

Differences Between Extrude, Revolve and Presspull