AutoCAD basic 3D practice drawing tutorial

The drawings made in AutoCAD can be used as standard manufacturing drawings or you can also use it to make 3D prints. For using AutoCAD drawing in 3D printers you need to convert the default .DWG file extension to .STL which can be fed to a 3D printer.

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.

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Step 1

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

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Step 2

Select POLAR ARRAY from modify panel of home tab and select two small circles on the top of geometry. Now specify center of array as center of largest circle and enter 4 in number of items, you will get an array like the one shown in image below.

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Step 3

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

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Step 4

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

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Step 5

Type J on command line and press enter now select complete geometry and press enter again. This will join all external 2D segments into a single unit.

Step 6

Now click on view tab on ribbon and go to views panel, now select SW Isometric from expanded views drop down menu, see image below on left for reference. From visual styles panel of view tab click on visual style drop down and select shaded as current visual style of your geometry, see image below on right.

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Step 7

Type PRESSPULL on command line and click at a location inside the geometry, make sure you are clicking inside the geometry not on the geometry, then enter height of 3 units in command line and press enter again. This command will add thickness of 3 units to the 2D geometry which we have made so far and your 2D drawing will look like this after presspull.

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Step 8

Create a circle of R17 on top of the object made in previous step, but for making a circle on top plane you need to make sure that dynamic UCS is turned on. Press F6 to turn on dynamic UCS then select circle command and move your cursor to top plane and click at the center of geometry for circle’s centerĀ and enter a radius of 17 units and press enter again.

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Step 9

Type EXT on command line and press enter then select the circle we have drawn in previous step and press enter again then type a height of 5.5 units and press enter again to exit the extrude command.

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Step 10

Now create another circle of radius 14 units with same center on top of geometry which we have drawn in previous step and extrude it by 3.5 units the same way we did previously.

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Step 11

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

Step 12

Create a circle of R11 on the top most surface of the geometry. Now type PRESSPULL on 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.

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Step 13

Type F on command line and press enter to start fillet command, type R on 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 image below and press enter twice to exit the command.

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Hope you enjoyed this tutorial if you have any questions regarding this tutorial let me know in comments below.

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