Autocad Inventor tutorial 2. Autocad Inventor tutorial 2的文档,希望对您的工作和学习有所帮助。以下是文档介绍:1. Autodesk Inventor Tutorial 2. Introduction to Part Modeling. Ron K C Cheng. PARAMETRIC FEATURE- BASED SOLID MODELINGCONCEPTSAutodesk Inventor is a parametric feature- based solid modeling application.
Parameters of allobjects are modifiable. To construct a 3. D solid model, you think about how to pose it intofeatures, construct the features one by one, bine them as you construct them. Toconstruct the solid features, you either make sketches or select a pre- constructed solid featurefrom the menu. Sketched Solid Features. Sketched solid features derive from sketches. There are four basic kinds of sketched solidfeatures: extruded, revolved, loft, and sweep.
In addition, there are other kinds of sketchedfeatures: coil, rib, and split. Extruded Feature.
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淘豆网网友bolee65近日为您收集整理了关于Autocad Inventor tutorial 2的文档,希望对您的工作和学习有所帮助。以下是文档介绍:1Autodesk Inventor Tutorial 2Introduction to. Introduction. Although AutoCAD has a number of commands for creating special 3D objects, a lot can be achieved by changing the properties of basic 2D objects like. The Inventor to Revit (RFA) Interactive Tutorial runs inside the Inventor application and leads you through the tutorial with step by step videos, supporting text and.
To make an extruded solid feature, you make a sketch and extrude the sketch in a directionperpendicular to the plane of the sketch. See Figure 2–1.) You extrude the sketch in eitherdirection or from mid- plane. Figure 2–1. Sketch extruded in either direction and from mid- plane. Revolved Feature. To make a revolved solid feature, you make a sketch and revolve it about an axis in eitherdirection or from mid- plane. See Figure 2–2.)2.
Figure 2–2. Sketch revolved in either direction and from mid- plane. Loft Feature. A loft solid feature builds on multiple sketches. It has a variable cross section defined by two ormore sketches residing on different sketch planes.
To construct a loft solid, you construct two ormore sketches on the different sketch planes, and loft from one sketch to another sketch. Figure. 2–3 shows a set of sketches and a loft solid constructed from the sketches. Figure 2–3. Sketches constructed on three sketch planes and loft solid feature constructed from the sketches.
Sweep Feature. Construction of a sweep solid feature requires two sketches: a profile sketch and a path sketch. The sweep solid’s volume is defined by sweeping the profile sketch along the path sketch. Thereare two kinds of path sketch: 2. D path sketch and 3. D path sketch. Sweeping a profile sketch alonga 2.
D path sketch, you construct a 2. D sweep solid feature. Sweeping a profile sketch along a 3.
Dpath sketch, you get a 3. D sweep solid feature. D Sweeping. In a 2. D sweep feature, both the profile sketch and the path sketch are 2. D. They lie on planarsketch planes. Figure 2–4 shows a 2.
D profile and a 2. D path (left) and a 2.
D sweep solid derivedfrom the sketches (right). Part Modeling 3. Figure 2–4. Profile sketch and 2.
D path sketch (left) and 2. D sweep solid (right)3. D Sweeping. Construction of 2. D and 3. D sweep solids is similar, both require a profile sketch to depict the crosssection of the sweep solid and a path sketch to specify the path of the sweep operation. Thedifference between them lies on the shape of the sweep path. In a 2. D sweep solid feature, thepath sketch is planar.
In a 3. D sweep solid feature, the path is three dimensional. Figure 2–5 showsa profile sketch and 3. D path sketch together with a 3. D sweep solid. Figure 2–5. Profile sketch and 3. D path sketch (left) and 3. D sweep solid (right)Coil Feature.
A coil solid is a special kind of 3. D sweep solid in which the profile sketch is swept along a helicalpath. To make a coil solid, you construct a 2. D sketch to depict the cross section of the coil,specify an axis, and specify the parameters of the helix. The axis can be a line, an edge, or a workaxis. See Figure 2–6.)4.
Figure 2–6. Sketch and coil feature. Rib Feature. A rib is a triangular or rectangular reinforcing element you add to ponent to strengthen it.(See Figure 2–7.) In essence, a rib is a special kind of extruded solid feature. To construct a rib,you construct an open- loop sketch profile and use the body of the solid to form a close loop inextruding. Figure 2–7. Two kinds of rib.
Split Features. There are two kinds of split features: face split and part split. Using a split tool, a face split featuresplits the faces of a solid part into two pieces, and a part split feature splits a solid part into twosolids and removes one of them. You can use a work plane, a sketch, or a surface as split tool. Figure 2–8 shows a face split feature and Figure 2–9 shows a part split feature. Both of them usea sketch as a split tool.
Part Modeling 5. Figure 2–8. Work plane used as split tool (left) and faces split (right)Figure 2–9. Work plane used as split tool (left) and part split (right)Sketched Surface Features. Using the four basic sketched feature construction methods (extruding a sketch, revolving asketch, lofting two or more sketches, and sweeping a sketch along another sketch), you canconstruct surfaces as well as solids. The surfaces that you construct are: extruded surface,revolved surface, loft surface, and sweep surface. To construct surfaces, you select the Surfacebutton from the feature construction dialog box.
You can use surfaces as split tool to split a partand as termination objects when constructing an extruded or revolved solid feature. Sketch Planes. To construct a sketched solid feature, you start with a sketch. To construct a sketch, you need asketch plane. There are three default planes where you specify a sketch plane: XY plane, XZplane, and YZ plane. In addition, you can use any existing planes of a solid feature or use artificialplanes established by using work features.
Figure 2–1. 0 shows a sketch constructed on a face of asolid part. Figure 2–1. 0Sketch plane establishd on the face of a solid. Boolean Operations.
The first sketched solid feature you construct in a 3. D solid part is called the base solid feature. Using feature- based approach to construct plex solid part, you construct additional bine them, one by one, with the existing solid by using one of the three kinds of Booleanoperations: join, cut, or intersect.
Join. Using the join operation, you join the new sketched solid feature with the existing solid. Theresulting solid has the volume enclosed by the new solid feature and the existing solid. Figure 2–1. 1shows a revolved solid feature joined to an extruded solid. Figure 2–1. 1New sketched solid feature joined to the existing solid.
Cut. Using the cut operation, you cut the new sketched solid feature from the existing solid. Theresulting solid has the volume of the new sketched solid feature removed from the existing solid. Figure 2–1. 2 shows a revolved solid feature cut from an extruded solid. Part Modeling 7. Figure 2–1. New sketched solid feature cut from the existing solid.
Intersect. Using the intersect operation, you intersect the new sketched solid feature with the existing solid. The resulting solid has a volume that contains the mon to both the new sketched solidfeature and the existing solid.
Figure 2–1. 3 shows a revolved solid feature intersecting with anextruded solid. Figure 2–1. 3New sketched solid feature intersected with the existing solid.
Placed Solid Features. Apart from constructing features from sketches, you can construct a feature by selecting a shapefrom the menu and specify the parameters. We call these pre- constructed solid shapes the placedsolid features. Autodesk Inventor has nine kinds of placed solid features: hole, thread, shell, fillet,chamfer, rectangular pattern, circular pattern, mirror, and face draft features. Hole Feature. A hole is a circular feature cut on a solid.
While cutting a hole, you can tap the hole to incorporatean internal thread. To construct a hole, you place a hole feature by specifying type, size, andlocation. Figure 2–1. 4 shows three hole features placed on a solid. Figure 2–1. 4An outside view and a cutaway view of a rectangular solid with three hole features.
Thread Feature. To construct a thread feature, you select a circular feature and specify the pitch and length of thethread. Figure 2–1. 5 shows two thread features placed on the external and an internal circularfeatures of a solid. Figure 2–1. 5Thread features placed on ciruclar faces of a solid part. Shell Feature. To make a solid hollow, you place a shell feature and state the thickness of the shell. Figure 2–1. 6shows a shell feature placed on a solid part, making the solid hollow. Figure 2–1. 6Solid part made hollow.
Fillet Feature. A fillet feature rounds off the edges of a solid; you select edges and specify fillet radii. Figure 2–1. 7 shows a fillet feature placed on a solid, rounding off three edges and a corner. Part Modeling 9. Figure 2–1. Fillet feature placed on a solid. Chamfer Feature. A chamfer feature bevels the edges of a solid; you select edges and specify bevel distances or thebevel distance and bevel angle. Figure 2–1. 8 shows a chamfer feature placed on a solid. Figure 2–1. 8Chamfer features placed on a solid.
Rectangular Pattern. To repeat a solid feature in a rectangular array, you select the feature and specify the directions,distances, and the number of repetitions.
Figure 2–1. 9 shows a rectangular slot repeated in arectangular array. Figure 2–1. 9Rectangular pattern feature. Circular Pattern.
To repeat a solid feature in a circular array, you select the feature and specify an axis, angulardistance, and number of repetitions. Figure 2–2. 0 shows a gear tooth repeated in a circular array. Figure 2–2. 0Circular pattern feature. Mirror Feature. To construct a mirror copy of a solid feature, you select a feature and specify a mirror plane. Figure 2–2. 1 shows a shaped slot mirrored about an artificial work plane. Figure 2–2. 1Mirror feature placed. Face Draft Feature.
To taper the faces of a solid, you place a face draft feature. You select an edge or a split line andspecify a draft angle. Figure 2–2. 2 shows a face draft feature placed on the vertical faces of asolid part. Figure 2–2. 2Face draft feature placed along the edges of a solid播放器加载中,请稍候..系统无法检测到您的Adobe Flash Player版本建议您在线安装最新版本的Flash Player 在线安装.