Here is the object in 3D along with its 2D drawing which nosotros volition learn to model in this post. I recommend you to switch to drafting and annotation workspace for this drawing, you lot can 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 CIRCLE command from draw panel of home tab, brand sure circle with radius ii.5 units has its center on the circumference of the circle with radius 26 units.

Stride 2

Select Polar Assortment from the Alter console of Home tab and select two small circles on the top of geometry. Now specify the eye of the largest circle as the center of the array and enter 4 in the Number of Items field. You volition get an array like the one shown in the image below.

Step 3

Delete the biggest circle and select FILLET command now enter R on the control line and type 7 as the fillet radius. Now apply this fillet at the intersections of the circle with R2.five and R22.five as shown in the image below.

Step iv

Trim all the geometries to make information technology look like the image below.

Step 5

Blazon J on the command line and press enter and so select complete geometry and press enter once more. This volition join all external 2d segments into a single unit of measurement. You may need to repeat the JOIN command couple of times to join the geometry completely.

Step six

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

Footstep 7

Type PRESSPULL on the command line and click at a location inside the geometry, make certain you are clicking inside the geometry and non on the geometry. Enter the pinnacle of 3 units on the control line and press Enter again.

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This command will add together the thickness of 3 units to the 2nd geometry which we have made so far and your drawing will look like the paradigm shown above.

Footstep eight

Create a circle of R17 on the top of the object fabricated in previous step, just for making a circle on top airplane you need to make certain that dynamic UCS is turned on. Press F6 to turn on dynamic UCS and so select circle command and move your cursor to the top plane and click at the heart of geometry for circle's middle and enter a radius of 17 units and press Enter again.

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Step 9

Blazon EXT on the control line and press enter then select the circle we have fatigued in previous step and printing enter again. Enter a height of 5.5 units and printing enter again to exit the extrude command.

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Step 10

Now create another circle of radius 14 units with the same center on top of geometry which we accept fatigued in the previous step and extrude information technology by 3.5 units the same manner we did previously.

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Footstep 11

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

Pace 12

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

AutoCAD 3D practice drawing

Footstep 13

Type F on the command line and press enter to start fillet command, type R on the command line and enter a radius of 1.five units for the fillet. Now select the edge between the flat slice and the biggest cylinder as shown in the image below and printing enter twice to go out the command.

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The concluding geometry will await similar the image shown above. Hope you enjoyed this tutorial if you have any questions regarding this tutorial let me know in the comments below.