The default angle, 0, extrudes a 2D object perpendicular to its 2D plane. Positive angles taper in from the base object. The taper angle applied to the extrusion is the distance between the two specified points. Taper Angle Specify angle of taper for extrusion : Specify an angle between -90 and +90 degrees, press ENTER, or specify a point If you specify a point for the taper angle rather than enter a value, you must pick a second point. Objects with multiple loops are extruded so that all the loops appear on the same plane at the end section of the extruded solid. If the object is not on the miter plane, the object is rotated until it is on the miter plane. This allows the start and end sections of the solid to match up. If the path is closed, the object should lie on the miter plane. If the path contains segments that are not tangent, the program extrudes the object along each segment and then miters the joint along the plane bisecting the angle formed by the segments. The extruded solid starts from the plane of the object and maintains its orientation relative to the path. The path should not lie on the same plane as the object, nor should the path have areas of high curvature. Helixes Note: You can select faces and edges on solids by pressing and holding CTRL, and then selecting these subobjects. Select extrusion path: Use an object selection method The following objects can be paths: Then the profile of the selected object is extruded along the chosen path to create solids or surfaces. The path is moved to the centroid of the profile. Selects the extrusion path based on a specified object. Specify start point of direction: Specify a point Specify end point of direction: Specify a point Path Specify second point: Specify a pointĭirection Specifies the length and direction of the extrusion with two points you specify. By default, planar objects are extruded in the direction of the object’s normal. If all the objects are on a common plane, the objects are extruded in the direction of the normal of the plane. Objects do not have to be parallel to the same plane. If you enter a negative value, the objects are extruded along the negative Z axis. Height of Extrusion Extrudes objects along the positive Z axis of the object's coordinate system if you enter a positive value. You can use CONVTOSURFACE to convert lines with thickness arcs with thickness and open, zero-width polylines with thickness to surfaces. Note : You can use CONVTOSOLID to convert polylines and circles with thickness to solids. If a selected object has thickness, the thickness is ignored. If a selected polyline has width, the width is ignored and the polyline is extruded from the center of the polyline path. You cannot extrude objects contained within a block or polylines that have crossing or selfintersecting segments. Planar faces on solids Note: You can select faces on solids by pressing and holding CTRL, and then selecting these subobjects. You can extrude the following objects and subobjects: The DELOBJ system variable controls whether the object(s) and path (if selected) are automatically deleted when the solid or surface is created or whether you are prompted to delete the object(s) and path. You can select the objects to extrude before you start the command. If you extrude an open object, the result is a surface. GOOD FOR MECHANICAL PARTS AND OTHER PRODUCTS.Lecture Note 09162009 Extrude Command entry: extrude Current wire frame density: ISOLINES=4 Select objects to extrude: Specify height of extrusion or : Specify a distance or enter p If you extrude a closed object, the result is a 3D solid. THIS IS VERY ESSENTIAL FOR ENGINEERS SINCE DESIGN CHANGES ARE ALWAYS HAPPENING. IT IS ” PARAMETRIC ” MEANING YOU CAN DEFINE THE SHAPE AND LATER EDIT. ) DEALS WITH ADDING DIMENSIONS AND CONSTRAINTS TO A 3D MODEL. SOLID MODELING CAD ( SOLIDWORKS / CATIA / NX / CREO / PRO-E / INVENTOR / FUSION 360 / SOLID EDGE / FREECAD ETC.
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