Also Read
3D Commands in AutoCAD
AutoCAD provides a robust set of commands for creating and manipulating 3D objects. Here are some essential 3D commands, along with their explanations, syntax, and examples.
1. EXTRUDE
Purpose: Converts 2D objects into 3D solids by stretching them along a specified path.
Syntax: EXTRUDE <object> <height>
Example: EXTRUDE P1 50
This command will extrude the polyline P1 to a height of 50 units, creating a 3D solid.
2. REVOLVE
Purpose: Creates a 3D solid by revolving a 2D object around an axis.
Syntax: REVOLVE <object> <axis_start_point> <axis_end_point> <angle>
Example: REVOLVE P1 0,0 0,1 360
This command will revolve the polyline P1 around the Y-axis (defined by 0,0 to 0,1) through 360 degrees.
3. SWEEP
Purpose: Creates a 3D solid or surface by sweeping a 2D object along a path.
Syntax: SWEEP <object> <path>
Example: SWEEP P1 P2
This command will sweep the polyline P1 along the path defined by polyline P2.
4. LOFT
Purpose: Creates a 3D solid or surface by lofting between several cross sections.
Syntax: LOFT <cross_sections>
Example: LOFT P1 P2 P3
This command will create a lofted shape passing through the cross-sections defined by P1, P2, and P3.
5. UNION
Purpose: Combines two or more 3D solids into a single solid.
Syntax: UNION <solid1> <solid2> ...
Example: UNION S1 S2
This command will combine the solids S1 and S2 into one solid.
6. SUBTRACT
Purpose: Subtracts the volume of one 3D solid from another.
Syntax: SUBTRACT <solid1> <solid2>
Example: SUBTRACT S1 S2
This command will subtract the volume of solid S2 from solid S1.
7. INTERSECT
Purpose: Creates a 3D solid from the intersecting volume of two or more solids.
Syntax: INTERSECT <solid1> <solid2> ...
Example: INTERSECT S1 S2
This command will create a new solid from the volume where solids S1 and S2 overlap.
8. SLICE
Purpose: Slices a 3D solid into two separate solids along a specified plane.
Syntax: SLICE <solid> <plane>
Example: SLICE S1 XZ
This command will slice the solid S1 along the XZ plane.
9. SECTION
Purpose: Creates a 2D cross-sectional view of a 3D solid.
Syntax: SECTION <solid> <plane>
Example: SECTION S1 XY
This command will create a 2D cross-section of the solid S1 along the XY plane.
10. PRESSPULL
Purpose: Creates a 3D solid by extruding or pushing a closed boundary.
Syntax: PRESSPULL <boundary> <height>
Example: PRESSPULL P1 20
This command will extrude the boundary P1 to a height of 20 units, creating a 3D solid.
Basic AutoCAD 3D part drawings
Comments