Learning to Use Sketch Relations 3D Solidworks

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While it is useful to read through the definitions and functions of all the sketch entities, tools, and relations, using your mouse to create is what this is all about. This tutorial makes sure that you get to know all the major functions in SolidWorks sketches. Almost every part that you build will start with a sketch, so this is a skill worth mastering. Follow these steps to learn about sketch relations: Open a new part using a template that you set up in the Template tutorial from Chapter 1. If you do not have this template, there is one provided for you on the CD-ROM named BibleInchTemplate.prtdot. Copy it to your templates folder and use it to create a new part. You may also use a SolidWorks default template. Select the Front plane in the FeatureManager, and click the Sketch button on the Sketch toolbar. Click the Line tool from the Sketch toolbar. Move the cursor near the Origin; the yellow Coincident symbol appears. Draw a line horizontal from the Origin. Remember that there are two ways to sketch the line: Click+click or click and drag. Make sure that the line snaps to the horizontal and that there is a yellow Horizontal relation symbol. The PropertyManager for the line should show that the line has a Horizontal relation. Also notice that the line is black, but the free endpoint is blue (after you hit Esc twice to clear the tool, then clear the selection). This means that the line is fully defined except for its length. You can test this by dragging the blue endpoint. Click the Smart Dimension tool on the Sketch toolbar, use it to click the line that you just drew, and place the dimension. If you are prompted for a dimension, type 1.000. If not, then double-click the dimension; the Modify dialog box appears, enabling you to change the dimension. The setting to prompt for a dimension is found at Tools ➪ Options ➪ General, Input Dimension Value. Draw two more lines to create a right triangle to look like Figure 3.40. If the sketch relations symbols do not show in the display, turn them on by clicking View ➪ Sketch Relations. You may want to set up a hotkey for this, because having sketch relations is useful, but often gets in the way. Note that the sketch relation symbols may also be green, depending on how your software is installed. Drag the blue endpoint of the triangle. Dragging endpoints is the most direct way to change the geometry. Dragging the line directly may also work, but this sometimes produces odd results. The sketch leaves a ghost when dragging so that you can see where you started. Note that the setting for leaving a ghost when dragging a sketch is found at Tools, Options, Sketch, Ghost Image On Drag. Click the Smart Dimension tool, and then click the horizontal line and the angled line. This produces an angle dimension. Place the angle dimension and give it a value of 30°. Click the Sketch Fillet tool, set the radius value to 0.10 inches, and click each of the three endpoints. Where the 1.000-inch dimension connects to the sketch, SolidWorks has created virtual sharps. Figure 3.41 shows the sketch at this point. You may now want to turn off the Sketch Relations display because the screen is getting pretty busy. You can find this setting at View >Sketch Relations.

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Creating a Custom Arrowhead in AutoCAD

Click Modify. In the Dimension Style Manager, Symbols and Arrows tab, under Arrowheads, select User Arrow from the First arrowhead list. In the Select Custom Arrow Block dialog box, enter the name of the block that you want to use as an arrowhead. Click OK. There aren’t many things you can do to make your dimensions look different from those of every other AutoCAD user, but you can create a custom arrowhead. I personally like the traditional open arrowhead that I used when drawing by hand. In AutoCAD, I reproduce that venerable shape with a line segment and two large radius arcs. If you’re as nostalgic as I am for the arrowheads of yore, do this: 1. On layer 0, draw an arrowhead one unit long and pointing to the right. 2. Define a block with the arrowhead you just drew, using the arrow point as the inser- tion point. 3. Select User Arrow from the bottom of the First list in the Arrowheads section of the Symbols And Arrows tab of the Modify Dimension Style dialog box. 4. Select your arrowhead block by name. If you want to use your custom arrowhead for leaders, you have to specify that by selecting it from the list of possible arrowheads in the Leader pane of the Symbols and Arrows tab.

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Make 3D Solid Objects with the Sweep method

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Make solid cylinders with R 50 mm long and 200 mm long. Creating a new part, Getting to know the sweep method, Getting to know the Sweep dialog box  1. Click the New icon and part icon to create a new part 2. Click the icon, and the 2D sketch icon so we can sketch tools activate. 3. Click the circle icon, and then from the origin create a circle with R = 50 mm. 4. Click the 2D sketch icon so that the sketch tool is inactive. 5.Click on the icon and click on the 2D sketch icon so we can sketch tools reactivate. 6. Click the normal top icon and then click the full line icon, then from origin draw a vertical line upwards of 200 mm. 7. Click the 2D sketch icon so that the sketch tool is inactive back. 8. Click the isometry icon.  9. Click the Sweep icon or on the menu line click insert, base sweep. So the sweep dialog box will be active. 10. From the sweep dialog box above, we click so right will be active Feature Manager Design Tree (FMDT). On FMDT, we click sketch 1 and sketch 2 so that both sketches are read in the group profile and path. Note: Sketch 1 is a sketch for a circle with R 50 mm (functions as profile), and sketch 2 is a sketch for a 200 mm full line (functions as a path). 11. Finally click the check list, so we will get a solid cylinder of the results sweep process.

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Solid Object Modeling with the Revolve method

Solid Object Modeling with the Revolve method Problem: Make solid cylinders with R = 50mm and length of 200mm. Target, Make a new part, Get to know the Revolve method, Get to know the Revolve dialog box 1. Click the New icon and part icon to create a new part 2. Click the icon, and the 2D sketch icon so we can sketch tools activate. 3. Click the centerline icon and then from the origin create the centerline line horizontally to the right 200mm. 4. Then click the full line icon and then from the origin make the line vertical upwards of 50 mm then horizontal to 200 mm and vertical down 50 mm so we get a picture like the following: 5. Click the Revolve icon, or on the menu line click insert, base, revolve, so the revolve dialog box will appear as follows. 6. From the revolve dialog box above, in the Revolve section we select the parameter One-Direction and type 360 ​​deg. 7. After the above process is complete, click the checklist so that we will

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