Here is the object in 3D along with its 2D drawing which we will learn to model in this post. I recommend you to switch to drafting and annotation workspace for this drawing, you can also download CAD files for this tutorial here.

Related: AutoCAD 2D and 3D practice drawings

1

Pace 1

Create the following circles using CIRCLE command from depict panel of home tab, make sure circle with radius 2.five units has its heart on the circumference of the circle with radius 26 units.

Step two

Select Polar Array from the Modify console of Habitation tab and select 2 small circles on the top of geometry. Now specify the center of the largest circle every bit the heart of the array and enter 4 in the Number of Items field. You lot volition get an array similar the one shown in the epitome below.

Step iii

Delete the biggest circle and select FILLET control at present enter R on the control line and type 7 as the fillet radius. Now utilise this fillet at the intersections of the circumvolve with R2.v and R22.5 every bit shown in the image below.

Footstep 4

Trim all the geometries to make it await like the image below.

Step 5

Blazon J on the control line and press enter then select complete geometry and press enter again. This will join all external 2D segments into a single unit. Y'all may need to repeat the Join command couple of times to join the geometry completely.

Stride half-dozen

Alter view to southwest isometric and visual manner to Shaded from Views and Visual styles panel of Visualize tab.

Step 7

Type PRESSPULL on the control line and click at a location inside the geometry, make certain you are clicking inside the geometry and not on the geometry. Enter the height of 3 units on the command line and printing Enter once more.

7

This command volition add the thickness of 3 units to the 2D geometry which nosotros take made so far and your cartoon volition look like the epitome shown above.

Step 8

Create a circle of R17 on the superlative of the object made in previous footstep, only for making a circle on meridian plane you need to make sure that dynamic UCS is turned on. Printing F6 to plough on dynamic UCS then select circle control and motion your cursor to the height plane and click at the eye of geometry for circumvolve's eye and enter a radius of 17 units and printing Enter again.

8

Step ix

Type EXT on the command line and printing enter then select the circle we have drawn in previous footstep and press enter again. Enter a height of v.v units and press enter again to leave the extrude command.

9

Footstep 10

Now create another circle of radius xiv units with the same center on superlative of geometry which we accept drawn in the previous step and extrude it by three.5 units the same mode we did previously.

10

Step eleven

Now type Marriage and Printing ENTER then select complete geometry and press enter again, this will ensure that all geometries get combined as a single unit.

Step 12

Create a circle of R11 on the top well-nigh surface of the geometry. Now blazon PRESSPULL on the command line and press Enter then click inside the circle of radius 11 units and enter -12 as depth of geometry, this will make a hole in existing geometry.

AutoCAD 3D practice drawing

Step 13

Type F on the control line and press enter to starting time fillet control, blazon R on the command line and enter a radius of 1.5 units for the fillet. Now select the edge between the flat piece and the biggest cylinder as shown in the image below and press enter twice to exit the command.

12

The final geometry volition expect like the prototype shown above. Hope you enjoyed this tutorial if yous take any questions regarding this tutorial allow me know in the comments below.