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Tutorial: Draw a 3D threaded bolt

A common, but difficult task, is to create a threaded bolt. I recently got a asking for more than 3D tutorials, so here you go. This tutorial assumes an intermediate knowledge of AutoCAD.

I rummaged around a box of miscellaneous junk and found this commodities. Information technology's virtually 3 inches long.

Follow these steps:

1. 1. Start a new cartoon using acad3d.dwt as the template. Set up the visual mode to 3D Wireframe and the workspace to 3D Modeling.
   2. Blazon plan to come across the view from the top.
   3. Create a new layer, object, and make it blue.
   4. Offset the POLYLINE command, specify a outset point anywhere in the middle of the screen, and describe segments as follows:
      • three<180
      • 3/xvi<ninety
      • .5<0
      • 1/4,-1/16 (this will be a diagonal line whose delta X = i/4 and delta Y = 1/16
      • two<0
      • Close

      Note: Close the polyline ensures that you'll get a solid rather than a surface when you revolve. You'll need the solid for afterwards operations, such as UNION.

      

   5. First the REVOLVE command and select the polyline. Revolve information technology along the 3-unit line, for the default 360 degrees.
   6. To get a fuller await, set the ISOLINES organisation variable to 8 and utilize the REGEN control.

1. 1. But to see the result, switch to the SW isometric viewpoint.
   2. So, switch to the Left viewpoint. You should be viewing the bolt from the top.
   3. Start the UCS command and use the View choice to create a new UCS. If yous want, salve it.
   4. Render to the SW Isometric viewpoint again. You lot're still in the new UCS. This will help you create the bolt'southward head.
   5. Kickoff the CYLINDER command. The centre should be the heart of the revolved solid'southward top. Use the Bore option and fix it to ix/16. The height is 0.25.
   6. Create a polygon of six sides. The center is the bottom eye of the cylinder, utilize the Circumscribe About Circle choice. The radius = 9/32.
   7. Utilize the EXTRUDE command to extrude the hexagon to the top of the cylinder.
   8. To create the beveled meridian, draw a circle at the top of the cylinder, with the same nine/32 radius.
   9. Extrude it, using the Taper Angle option. The taper bending = -45 degrees, the distance is -0.5, to extrude it downwards.
   10. Employ the INTERSECT command and cull the extruded, tapered circle and the extruded hexagon, and you should run across the familiar look of the head of a commodities. Here you see it in the Conceptual visual style.

1. 1. To create the threads, start the HELIX command. The eye is the middle of the circle at the pinnacle of the thread expanse. The base radius is whatsoever quadrant of the aforementioned circle. Press Enter to set the top radius to the same as the base radius. Use the Turns selection and set the turns to 14. For the axis endpoint, selection the center at the bottom of the rod, before it tapers to a point.
   2. Switch to the Globe UCS and use the Programme command. Turn the viewpoint and so that the end of the helix is at the elevation or bottom. Below, you lot come across information technology at the bottom. Employ the UCS command with the View option.
   3. To create the triangular shape of the thread, start the POLYGON command and set it to iii sides. Set the eye to the endpoint at the end of the rod. Use the Inscribed in Circumvolve selection. Set the radius to i/16. If the endpoint of the heliix is at the bottom, as y'all run into here, you demand to rotate the triangle 180 degrees. It should look like the figure hither. The point of the triangle needs to be facing outward from the rod of the bolt.

1. 1. Start the SWEEP command and select the triangle. Use the Alignment option and set information technology to No. And so select the helix as the sweep path.
   2. Use the Matrimony command to combine all the objects. Here'due south the consequence in the 3D Hidden visual manner.

Here'southward the result with the Framing Steel material. I expected information technology to be silver just it came out coppery. Information technology looked and so good that I left it.

For an excellent fix of 3D tutorials, go to JD Mather's site.

Related tips:

* Tutorial: Draw a 3D threaded bolt-video tutorial (See a video of this tutorial!)
* 3D Tutorial: Draw a glass
* Carve a solid with a surface

Describe and edit faster and easier with these top 25 productivity tips every AutoCAD user should know. Bank check out "Pinnacle Productivity Tips Every AutoCAD User Should Know" at http://www.ellenhelps.me/25-Productivity-Tips

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Ellen Finkelstein is the author of the best-selling AutoCAD & AutoCAD LT Bible, which started with R14. Ellen has written extensively on AutoCAD, including articles for Autodesk's website and features for AutoCAD's Aid system. Ellen's starting time volume was AutoCAD For Dummies Quick Reference.

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