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

Related: AutoCAD 2nd and 3D practice drawings

1

Step i

Create the following circles using Circle command from describe console of home tab, make sure circle with radius 2.5 units has its center on the circumference of the circumvolve with radius 26 units.

Step ii

Select Polar Array from the Modify panel of Home tab and select two small circles on the pinnacle of geometry. Now specify the eye of the largest circle as the heart of the array and enter 4 in the Number of Items field. Yous volition get an array like the one shown in the image beneath.

Footstep 3

Delete the biggest circle and select FILLET command at present enter R on the command line and blazon 7 as the fillet radius. Now apply this fillet at the intersections of the circle with R2.5 and R22.5 as shown in the image beneath.

Step iv

Trim all the geometries to make information technology wait like the paradigm below.

Stride 5

Type J on the command line and press enter and so select complete geometry and press enter again. This volition join all external 2D segments into a unmarried unit. You may need to repeat the JOIN command couple of times to join the geometry completely.

Step 6

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

Step seven

Type PRESSPULL on the control line and click at a location inside the geometry, make sure you are clicking inside the geometry and not on the geometry. Enter the acme of three units on the command line and press Enter once more.

7

This command will add the thickness of three units to the 2nd geometry which nosotros accept made so far and your drawing volition look similar the paradigm shown above.

Footstep 8

Create a circle of R17 on the elevation of the object fabricated in previous footstep, but for making a circumvolve on top airplane y'all demand to make certain that dynamic UCS is turned on. Printing F6 to plough on dynamic UCS so select circle command and motility your cursor to the top airplane and click at the center of geometry for circle'due south center and enter a radius of 17 units and press Enter once more.

8

Footstep 9

Type EXT on the command line and press enter then select the circumvolve nosotros accept fatigued in previous step and press enter again. Enter a height of 5.5 units and press enter again to exit the extrude command.

9

Pace 10

Now create another circle of radius fourteen units with the same center on top of geometry which we have drawn in the previous step and extrude it by 3.5 units the aforementioned way nosotros did previously.

10

Step 11

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

Step 12

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

AutoCAD 3D practice drawing

Step thirteen

Blazon F on the command line and printing enter to commencement fillet command, type R on the command line and enter a radius of ane.5 units for the fillet. Now select the border between the flat piece and the biggest cylinder as shown in the image beneath and printing enter twice to exit the command.

12

The final geometry will look similar the epitome shown above. Hope y'all enjoyed this tutorial if you have any questions regarding this tutorial let me know in the comments below.