Here is the object in 3D along with its 2D drawing which nosotros volition learn to model in this postal service. I recommend you to switch to drafting and annotation workspace for this drawing, you tin also download CAD files for this tutorial here.

Related: AutoCAD 2d and 3D practice drawings

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Step 1

Create the following circles using Circumvolve command from draw panel of home tab, brand sure circumvolve with radius 2.5 units has its centre on the circumference of the circle with radius 26 units.

Step 2

Select Polar Array from the Modify console of Abode tab and select two small circles on the height of geometry. Now specify the eye of the largest circle as the center of the array and enter four in the Number of Items field. You will get an array like the one shown in the image beneath.

Pace 3

Delete the biggest circle and select FILLET command now enter R on the command line and blazon vii as the fillet radius. At present apply this fillet at the intersections of the circle with R2.5 and R22.5 equally shown in the paradigm beneath.

Footstep 4

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

Step v

Blazon J on the control line and press enter then select complete geometry and press enter again. This will join all external second segments into a unmarried unit. You may demand to repeat the JOIN command couple of times to join the geometry completely.

Pace 6

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

Step vii

Blazon PRESSPULL on the command line and click at a location within the geometry, brand sure you are clicking inside the geometry and not on the geometry. Enter the height of 3 units on the command line and press Enter again.

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This command will add the thickness of 3 units to the second geometry which we accept made so far and your drawing will look like the prototype shown higher up.

Step 8

Create a circle of R17 on the top of the object made in previous stride, but for making a circle on top plane you demand to make sure that dynamic UCS is turned on. Printing F6 to turn on dynamic UCS then select circle command and move your cursor to the top aeroplane and click at the middle of geometry for circle's center and enter a radius of 17 units and press Enter again.

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Footstep 9

Type EXT on the control line and press enter then select the circumvolve we have fatigued in previous step and printing enter again. Enter a height of five.five units and printing enter again to go out the extrude command.

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Footstep x

At present create another circle of radius fourteen units with the same center on top of geometry which nosotros have fatigued in the previous step and extrude information technology by three.v units the same way nosotros did previously.

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Step 11

Now type Matrimony and Press ENTER then select complete geometry and printing enter once again, this will ensure that all geometries get combined as a single unit.

Pace 12

Create a circle of R11 on the tiptop almost surface of the geometry. Now type PRESSPULL on the command line and press Enter so click inside the circle of radius eleven units and enter -12 every bit depth of geometry, this volition make a hole in existing geometry.

AutoCAD 3D practice drawing

Step 13

Type F on the control line and press enter to kickoff fillet command, type R on the control line and enter a radius of one.5 units for the fillet. Now select the border betwixt the flat piece and the biggest cylinder every bit shown in the paradigm below and press enter twice to get out the command.

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The final geometry volition expect like the image shown above. Hope you enjoyed this tutorial if you have whatever questions regarding this tutorial let me know in the comments below.