Draw a glassDraw a glass

Draw a circle with a radius of 1.25.Draw a circle with a radius of 1.25. Start the EXTRUDE command. Select the Start the EXTRUDE command. Select the

circle and end selection.circle and end selection. Enter 5.5 for the height of the extrusionEnter 5.5 for the height of the extrusion Enter -5 for the taper angle. You use a Enter -5 for the taper angle. You use a

negative number to taper outward.negative number to taper outward. Use the 3DORBIT command to change the Use the 3DORBIT command to change the

view as shown below. view as shown below.

The results looks like a glass, as The results looks like a glass, as you see on the left object. (change you see on the left object. (change the ISOLINES system variable to the ISOLINES system variable to

8 to give it a nicer look.) But 8 to give it a nicer look.) But when you use the HIDE when you use the HIDE

command on it, as you see on the command on it, as you see on the right object, right object,

you see that it's a solid.

To create a glass, you use the Shell To create a glass, you use the Shell feature, which is part of the feature, which is part of the

SOLIDEDIT command. SOLIDEDIT command. Display the Solids Editing toolbar. (Right-click any toolbar Display the Solids Editing toolbar. (Right-click any toolbar

and choose Solids Editing.)and choose Solids Editing.) Click the Shell button. Click the Shell button. Select your solid.Select your solid. At the At the Remove faces or [Undo/Add/ALL]:Remove faces or [Undo/Add/ALL]: prompt, you need prompt, you need

to remove the face that you don't want to shell. For a glass, to remove the face that you don't want to shell. For a glass, it's the top face, because you want that face to remain open. it's the top face, because you want that face to remain open. In a view like the one above, you just click inside the top In a view like the one above, you just click inside the top face of the solid. face of the solid.

The prompt repeats; just press Enter. The prompt repeats; just press Enter. Enter 3/32 for the shell offset distance.Enter 3/32 for the shell offset distance. Press Enter twice to exit the command. Press Enter twice to exit the command.

Here's the Here's the result, with result, with

some shading.some shading.

Now, all you need is some water!

Draw a 3D threaded Draw a 3D threaded boltbolt

I rummaged around a box of miscellaneous junk and found this bolt. You can see that it's about 3

inches long.

Follow these steps: Follow these steps: Start a new drawing using (yourname)(3Dbolt).dwt as the Start a new drawing using (yourname)(3Dbolt).dwt as the

template. Set the visual style to 3D Wireframe and the template. Set the visual style to 3D Wireframe and the workspace to 3D Modeling. workspace to 3D Modeling.

Type plan to see the view from the top.Type plan to see the view from the top. Create a new layer, object, and make it blue.Create a new layer, object, and make it blue. Start the POLYLINE command, specify a start point Start the POLYLINE command, specify a start point

anywhere in the middle of the screen, and draw segments anywhere in the middle of the screen, and draw segments as follows: as follows:

3<1803<180 3/16<903/16<90 .5<0.5<0 1/4,-1/16 (this will be a diagonal line whose delta X = 1/4 1/4,-1/16 (this will be a diagonal line whose delta X = 1/4

and delta Y = 1/16and delta Y = 1/16 2<02<0 Close Close

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

Start the REVOLVE command and select the Start the REVOLVE command and select the polyline. Revolve it along the 3-unit line, for the polyline. Revolve it along the 3-unit line, for the default 360 degrees.default 360 degrees.

To get a fuller look, set the ISOLINES system To get a fuller look, set the ISOLINES system variable to 8 and use the REGEN command. variable to 8 and use the REGEN command.

Just to see the result, switch to the SW Just to see the result, switch to the SW isometric viewpoint.isometric viewpoint.

Then, switch to the Left viewpoint. You Then, switch to the Left viewpoint. You should be viewing the bolt from the top.should be viewing the bolt from the top.

Start the UCS command and use the View Start the UCS command and use the View option to create a new UCS. If you want, option to create a new UCS. If you want, save it.save it.

Return to the SW Isometric viewpoint again. Return to the SW Isometric viewpoint again. You're still in the new UCS. This will help You're still in the new UCS. This will help you create the bolt's head.you create the bolt's head.

Start the CYLINDER command. The center should Start the CYLINDER command. The center should be the center of the revolved solid's top. Use the be the center of the revolved solid's top. Use the Diameter option and set it to 9/16. The height is Diameter option and set it to 9/16. The height is 0.25.0.25.

Create a polygon of 6 sides. The center is the Create a polygon of 6 sides. The center is the bottom center of the cylinder, use the Circumscribe bottom center of the cylinder, use the Circumscribe About Circle option. The radius = 9/32.About Circle option. The radius = 9/32.

Use the EXTRUDE command to extrude the Use the EXTRUDE command to extrude the hexagon to the top of the cylinder.hexagon to the top of the cylinder.

To create the beveled top, draw a circle at the top of To create the beveled top, draw a circle at the top of the cylinder, with the same 9/32 radius. the cylinder, with the same 9/32 radius.

Extrude it, using the Taper Angle option. Extrude it, using the Taper Angle option. The taper angle = -45 degrees, the distance is The taper angle = -45 degrees, the distance is -0.5, to extrude it downward. -0.5, to extrude it downward.

Use the INTERSECT command and choose Use the INTERSECT command and choose the extruded, tapered circle and the extruded the extruded, tapered circle and the extruded hexagon, and you should see the familiar hexagon, and you should see the familiar look of the head of a bolt. Here you see it in look of the head of a bolt. Here you see it in the Conceptual visual style. the Conceptual visual style.

To create the threads, start the HELIX command. The center is To create the threads, start the HELIX command. The center is the center of the circle at the top of the thread area. The base the center of the circle at the top of the thread area. The base radius is any quadrant of the same circle. Press Enter to set the radius is any quadrant of the same circle. Press Enter to set the top radius to the same as the base radius. Use the Turns option top radius to the same as the base radius. Use the Turns option and set the turns to 14. For the axis endpoint, pick the center at and set the turns to 14. For the axis endpoint, pick the center at the bottom of the rod, before it tapers to a point. the bottom of the rod, before it tapers to a point.

Switch to the World UCS and use the PLAN command. Turn Switch to the World UCS and use the PLAN command. Turn the viewpoint so that the end of the helix is at the top or bottom. the viewpoint so that the end of the helix is at the top or bottom. Below, you see it at the bottom. Use the UCS command with Below, you see it at the bottom. Use the UCS command with the View option.the View option.

To create the triangular shape of the thread, start the To create the triangular shape of the thread, start the POLYGON command and set it to 3 sides. Set the center to the POLYGON command and set it to 3 sides. Set the center to the endpoint at the end of the rod. Use the Inscribed in Circle endpoint at the end of the rod. Use the Inscribed in Circle option. Set the radius to 1/16. If the endpoint of the heliix is at option. Set the radius to 1/16. If the endpoint of the heliix is at the bottom, as you see here, you need to rotate the triangle 180 the bottom, as you see here, you need to rotate the triangle 180 degrees. It should look like the figure here. The point of the degrees. It should look like the figure here. The point of the triangle needs to be facing outward from the rod of the bolt.triangle needs to be facing outward from the rod of the bolt.

Start the SWEEP command and select the Start the SWEEP command and select the triangle. Use the Alignment option and set it to triangle. Use the Alignment option and set it to No. Then select the helix as the sweep path.No. Then select the helix as the sweep path.

Use the UNION command to combine all the Use the UNION command to combine all the objects. Here's the result in the 3D Hidden objects. Here's the result in the 3D Hidden visual style. visual style.

Here's the result with the Framing Here's the result with the Framing Steel material. I expected it to be silver Steel material. I expected it to be silver but it came out coppery. It looked so but it came out coppery. It looked so

good that I left it. good that I left it.