Draw star autocad

AutoCAD remembers each command sequence and can dial back to an earlier points. Thus, if you do make a mistake, just "undo" the work until you are at the point where you were prior to making the mistake.

When all the lines are trimmed and erased, you should have the 5-point star as above. But we're not finished. Maybe you would have preferred the star more like is used on the American flag, with collinear lines on opposite sides of each other; that is, like would be produced by drawing lines to every second point on the outside circle.

To do that, draw the lines as in the next step. As in the drawing above, draw the five lines to every other point on the star those points that were on the outside circle. Again, activate the Line tool by typing "L" or on the ribbon. Proceeding around the outside circle, and connecting every other point on the star, will produce the screen as above.

Next, erase all the lines from the star that was draw previously. You will be left with the five lines that create the new star, however, they cross the interior of the star. We will trim these lines, which is simply done with the Trim command. In this case, the lines actually cross the star and should be easily trimmed by selecting all the lines in the drawing, and then clicking on all the points inside of the outside of the shape of the star.

This star can be taken to the laser cutter, or the plasma cutter, or the ShopBot, or any other CNC machine, and used to cut the star pattern.

And it was created with a minimum of inputs for adding dimensions to the lines: the four commands of copy, offset, extend, and trim, the major part of the work. Also, in terms of your question about using the minimum number of keystrokes, as a mathematical exercise jastir, I'm pretty sure using GRIPS would win hands down.

Reply 6 years ago on Introduction. My comment would be that "Offset" is possibly one of the most powerful commands in AutoCAD,simply because parallel lines and lines or points at a certain distance from an existing point can be very useful.

For instance, in my project today, I needed to cut piece 8" wide on a table saw. The CAD process and the process on my table saw are basically the same thing. In the case of the Star design, I can't say that it's that helpful. However, "Offset" will also work with circles and polygons, as well as lines. And it's transferable to other AutoDesk products: I was just using it with a Revit design today. If you have been using AutoCAD for a year you probably know there is more than 1 way to draw something Nice tutorial, keep up the cad work.

I absolutely agree there are usually several ways to do something. And I agree with you, this is not the best and easiest way. However, what I really wanted to get across was that using the 4 commands, at least to me, is essential to using AutoCAD effectively. I don't want to belabor it really, but currently, I'm working on a design for an addition to a friend's house. He's trying to save a few bucks, he's a carpenter, and very capable, and as it's an addition, it doesn't really require an architect.

The point is, I've spend a lot of time this week revising drawings: copy, offset, extend, and trim. I've probably done them at least times each.

The mathematician in me wonders what's the least number of keystrokes required to make the star. Your solution is better. That is a fair point. Also one entry for a dimension, the radius of the circle. AutoCAD now asks for the Radius of the imaginary circle.

Just click on the top quadrant snap at the position on our circle to provide a radius point for the pentagon. Now we can delete the pentagon, which has served its purpose. Keep the circle, though, because we will use it in a minute to set the exact center point of our star block. TRIM gives you the option of either choosing cutting edges by selecting them, or just hitting [ENTER] to use all of the lines in your drawing as cutting edges.

Only the star linework and hatch objects now remain selected. The Block Definition dialog box appears. Use the Pick point button to place the base point. You can now erase the circle. Finding the exact geometric center of a five-pointed star like this, without having a circle to go by, is not an easy trick.

Try it sometime. By having a star block with an exact center base point, you can now accurately place this star into a grid system or other geometric pattern.

Hope you enjoyed this little project. Thanks again to Paul for letting me provide this guest post. Mark enjoys having fun with family and friends, traveling, playing guitar, seeing and photographing animals, woodworking, and exploring new places. June Mark Sadler 3 Comments. The GiMP graphics editor is free to download, and it can easily be used to create angled lines as described in the tutorial. You can also massively cheat the whole process and download my finished star as a template and make it smaller or bigger to suit your need.

Introduction: How to Draw a 5-point Star. By TheFrankTurk Follow. More by the author:. About: I make things so you can make things. Out of stuff. More About TheFrankTurk ». Second: draw the circle of the radius size for your star.

A sample of one star I made using this technique is shown above. Did you make this project? Share it with us! I Made It! Reply Upvote.