In the second Viewport set the view to Top. You can delete the initial arcs and split the screen into two Viewports. Now select the Intersect tool and pick the two shapes. If not use the presspull tool to extend the bottom downward. Just make sure the cylinder pass through the curved shape. Select the Cylinder tool and draw a cylinder as shown. Now select the Top icon on the Viewcube so you see the model from the top. Use Intersect tool to create resulting object Then select the surface and give it a thickness.

Now select the Solid Tab and the Thicken tool. Then select the other two arcs and press enter. Select two opposite arcs and press enter. Select the Surface Tab and then the Network tool. Now the geometry is ready for the Network Surface tool. The result will be that two of the arcs will be mirrored. Then select three points on the ends of the arcs and say Yes to delete the original arcs. Now select Mirror3D and select two opposite arcs. Now copy both of the arc to the other end of the other as shown.

Now select the blue band and then click on the copy sub command. Then select the red band and rotate the arc 90 degrees so that it’s upright.

Right click the Gizmo and set it to Rotate. Select its base and move it to the endpoint of the arc. Now select the arc and a 3d Gizmo will appear on the arc. Your icons will change and look like the ones should below. If your workspace has not been set to 3D you can set it by selecting the Gear icon on the bottom right and select the 3D Modeling Workspace. Make sure your visual style is set to anything other than 2D Wireframe. Now view the arc in 3D by either selecting the edge of the Viewcube or using Shift and RightMouse button together. In order to create a Network surface, I’ll draw four pieces of geometry. Note that in the process below I have not used exact measurements. Then to use the Intersect command with a cylinder to create the resulting circular shape. The idea is to create a Network surface and then convert the surface to a solid. In this blog I’ll show the process of how to create the shape as shown. In plan it needs to be a circle but in elevation it should have a curved profile. A while back a customer asked how to create a certain shape they need to draw up in AutoCAD.

Autocad 3d