How To Draw Threads In Autocad

Tutorial: Draw a 3D threaded bolt

A common, but difficult task, is to create a threaded bolt. I recently got a request for more 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 bolt. It's nigh iii inches long.

Follow these steps:

1. Start a new drawing using acad3d.dwt every bit the template. Ready the visual mode to 3D Wireframe and the workspace to 3D Modeling.
2. Type plan to meet the view from the top.
3. Create a new layer, object, and make it blue.
4. Kickoff the POLYLINE command, specify a showtime point anywhere in the middle of the screen, and depict segments every bit follows:
  - 3<180
  - 3/xvi<90
  - .5<0
  - 1/4,-1/16 (this will be a diagonal line whose delta Ten = 1/4 and delta Y = 1/16
  - 2<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 later operations, such as Spousal relationship.
5. Get-go the REVOLVE command and select the polyline. Revolve it forth the 3-unit of measurement line, for the default 360 degrees.
6. To become a fuller expect, set the ISOLINES system variable to 8 and employ the REGEN command.

1. Just to run into the result, switch to the SW isometric viewpoint.
2. Then, switch to the Left viewpoint. Y'all should exist viewing the bolt from the peak.
3. Start the UCS control and utilize the View option to create a new UCS. If you desire, save it.
4. Return to the SW Isometric viewpoint again. You're withal in the new UCS. This will help you create the commodities's head.
5. Commencement the CYLINDER command. The middle should be the eye of the revolved solid's top. Utilise the Diameter option and gear up it to 9/16. The height is 0.25.
6. Create a polygon of 6 sides. The centre is the bottom center of the cylinder, utilize the Circumscribe About Circumvolve option. The radius = 9/32.
7. Utilise the EXTRUDE command to extrude the hexagon to the elevation of the cylinder.
8. To create the askew top, draw a circumvolve at the acme of the cylinder, with the same ix/32 radius.
9. Extrude it, using the Taper Angle option. The taper angle = -45 degrees, the distance is -0.5, to extrude it downward.
10. Employ the INTERSECT control and cull the extruded, tapered circle and the extruded hexagon, and you lot should see the familiar look of the head of a commodities. Here y'all see information technology in the Conceptual visual manner.

1. To create the threads, get-go the HELIX control. The middle is the eye of the circle at the top of the thread area. The base radius is whatever quadrant of the same circle. Press Enter to set the peak radius to the same equally the base radius. Utilise the Turns option and set the turns to 14. For the axis endpoint, pick the center at the lesser of the rod, earlier it tapers to a point.
2. Switch to the World UCS and utilize the PLAN control. Plough the viewpoint and so that the end of the helix is at the summit or bottom. Beneath, you see it at the bottom. Employ the UCS command with the View option.
3. To create the triangular shape of the thread, start the POLYGON control and set it to iii sides. Gear up the center to the endpoint at the finish of the rod. Use the Inscribed in Circle pick. Ready the radius to ane/16. If the endpoint of the heliix is at the lesser, as yous see hither, you need to rotate the triangle 180 degrees. It should look like the effigy here. The point of the triangle needs to be facing outward from the rod of the bolt.

1. Start the SWEEP command and select the triangle. Use the Alignment option and set it to No. Then select the helix every bit the sweep path.
2. Apply the UNION control to combine all the objects. Hither'southward the result in the 3D Hidden visual style.

Here's the outcome with the Framing Steel material. I expected it to be argent simply it came out coppery. It looked so good that I left it.

For an excellent set of 3D tutorials, go to JD Mather'south 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

Draw and edit faster and easier with these elevation 25 productivity tips every AutoCAD user should know. Check out "Top 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'southward Help organisation. Ellen'due south first book was AutoCAD For Dummies Quick Reference.