# 20 Days of 2D AutoCAD exercises #16

Today, we are going a little banana, but don't be put off, if you were here since Day #1 you actually possess all the skill to come out of this exercise successfully. Here is a simple 2D exercise that I will want us to work on in today's session.

As an advice, you should always before putting yourself to work with this sort of AutoCAD exercise, try finding what will be easy to start with. I will suggest in this exercise to start by putting those two giant circles in place. You actually have all the information to start drawing them without any hassle.

Other information I would like to provide in this exercise are the following. You will need the ARRAY command in AutoCAD to place those object the way they are in this exercise. And to construct an Array, you need a reference object, and in this exercise the reference object is a bit inclined seeing from the center of the array. Their angle of inclination are provided on the image below.

I think you have all to start, in spite of all the information I just provided I will go ahead I shoot some Hint to help you in this exercise.

You can easily get the arc A using the Tangent feature learned in past AutoCAD exercises. Draw B using the OFFSET command. The same approach applies to FGH.

If you still have some difficulties drawing this, feel free to drop a comment below. Do not forget to share and like if this helped you.

See you on the next session.

The whole series
AutoCAD Exercises #1Drawing your first piece of 2D using AutoCAD. Using LINE command and fixing your settings for a better user experience. Learning how to use coordinates and Using exclusively the command window to draw.
AutoCAD Exercises #2Learning how to draw straight lines with definite dimensions. Basic concept for daily use while working with AutoCAD
AutoCAD Exercises #3Learning the use of OSNAP and using skills you gained to design a more complex 2D.
AutoCAD Exercises #4Using some math and drawing lines with specific angles and dimensions. Learning the basic concept of angles in AutoCAD, and actually using the trick main while.
AutoCAD Exercises #5FILLET command and the use of OSNAP. Learning how to place object. Learning how to use center points.
AutoCAD Exercises #6CHAMFER command. Using the CHAMFER command and leaning more about the command window.
AutoCAD Exercises #7how to use HATCH in AutoCAD. You will need skills from Day #4 to have the exercise done, and you will learn how to actually use the HATCH command.
AutoCAD Exercises #8Playing with the TANGENT feature of the OSNAP. You will have a complex figure to replicate, and you will have to learn how the TANGENT feature of the OSNAP works. You will also have to learn a new trick on how to draw a circle using this very technique.
AutoCAD Exercises #9Clear description on how the ARC command works and a complex exercise to try the technique out. All instructions are given for you to easily assimilate the tutorial.
AutoCAD Exercises #10Tricky exercise. You will have to use all technique you have learned in previous exercises to accomplish this one. Hints are given. And an opportunity to ask questions is as well given
AutoCAD Exercises #11Concrete exercise where you will have to see advantages of learning the ARRAY command. A Polar Array is designed and some old techniques you must have learned from the beginning will be helpful.
AutoCAD Exercises #12We have more than an exercise, The aim is to force you to use the ARRAY command. A rectangular Array is to be created.
AutoCAD Exercises #13MIRROR command. The mirror command has not been used since the beginning. This exercise makes it impossible for you if you don't use the MIRROR command. Learning the concept of symmetry in AutoCAD
AutoCAD Exercises #14Create a layers and changing line type. Using the ROTATE command and the OFFSET command. Learning how to combine a set of techniques toward something definite.
AutoCAD Exercises #15Using the combination of all techniques learned so far to come to achieve a complex 2D AutoCAD exercise. Previous learned techniques will be needed in this session and a little bit of math too.
AutoCAD Exercises #16This is a nice AutoCAD exercise that will make you test what you have learned so far. It is testing you ability to combine all you know to get a quite tough exercise done. Of course, hints have been provided to help you get it done.
AutoCAD Exercises #17Revision exercise. Be ready to use your calculator. You will need a bit more of precision in this session. An emphasis has been made on the ROTATE command, OFFSET command and FILLET command in this exercise.
AutoCAD Exercises #18Learning how to draw a polygon in AutoCAD. Here is shown how you can easily construct perfect star in AutoCAD, you may want to convert it into a block for future use. A complex figure is provided as well to help you practice.
AutoCAD Exercises #19Learning how to construct a complex drawing using technique provided to you in previous sessions. This serves as a test, to see how far you have gone since the beginning of this series of exercises.
AutoCAD Exercises #20Exam Day. Grab your Exam eBook for free and come back to me with questions and suggestions on how to make this course easier to understand if possible.
• Rashid

Hello Sir,

Im just wanna ask regarding on exer 16. How do you. I cant figure this out. i used to follow the tip u’ve given but my problem is the arc A and B. I made the two circle first and i used the arc command and its hard to configure the two arc with 180 radius between the two circle. pls Help me to understand this. Thank you

Rashid

• Antone

You do not need to use the Arc command for these Arcs. You need to use the circle command and the OFFSET command.
For Arc A, Use the feature of the circle that allows you to draw a circle passing by two tangent points, and use the resulting arc with an OFFSET distance of 20 to get the Arc B.
You may need to check how to draw a circle with a given radius and tangent to two objects on http://www.computeraideddesignguide.com/drawing-a-circle-in-autocad/

• Si

Can’t you just fillet between the offset arc and the 2 circles Instead of tan tan radius to get the desired arcs between the offset arc and the 2 circles?

• Antone

NO. How would you choose the starting and ending point on the circle then?

• Si

Maybe you misunderstood me, I have just tried what I thought might work and it did, what I did was fillet, using line B as first reference point and then the circle with radius 26 and 65 respectively for the 2nd reference and the arcs were put in, I did both methods on different layers, and then turned them both on to find they had both placed the arcs in the same place one the tan tan radius method had been trimmed.

• Antone

Alright. That’s great! Make sure to check all dimensions at the end to see if they match ones in this exercise.
Thanks for letting me know.

• syurgaku firdaus

kimak ko susah alu ya

• Meral Irkan

Hi,
I am having difficulties to place the fillet Radis10 at point F. What am I missing there? Thank you in advance!