You could yell for the wife to stand on the center piece to hold it down. Things you have around the house. Just find the tool that you need. Sharon from Delaware, Kevin appreciates the question and hope this free how to video answers it for you. Kevin really appreciates you watching. See this video now …. Your email address will not be published. If you know the diameter of your circle, you can use a standard formula to figure out the width of the fabric cut needed to make a tube.
That width is the circumference of the circle that will be inserted into the tube we have a great step-by-step tutorial on how to insert a circle into a tube. An important step many people miss at this point is forgetting to add extra to both pieces for the seam allowance.
In our example, that means:. The height of your fabric cut is variable and dependent on your project. If you are using Pi, remember it always returns a decimal number. If you already deal with the metric system, you rock — no conversion necessary. In our example we have The table below will give you a close-enough ruler match. The decimal. But you can also easily make your own compass to draw a circle. To start, you need to know how big you want your circle the diameter. To draw a circle you need to know its radius.
As you learned above in the first section, the radius is one half of the diameter. With your spiffy new circle, you can now sew the side seam in the main fabric cut. When commenting, your name will display but your email will not. Hi Sandi — you are actually still working with the formula as shown above, just a bit backwards. Use the formula above to then figure the circumference. Then, again keeping the tube as intact and firm as possible, use your tape measure around the tube; this should also give you the approximate circumference.
Check your work by making sure these two measurements are the same or at least nearly the same… given you are working with something that is … Read more ». Now if I can learn to due top circle is bigger than my bottom. Then, keeping the end without the pencil stationery, rotate the compass degrees so the pencil draws a perfect circle. First, tie one end of the string to the tip of a pencil.
Next, hold the other end of the string down on a piece of paper where you want the center of the circle to be. Then, just pull the pencil so the string is taut and draw a circle around the end of the string. If you want to learn how to draw a circle using a protractor or a pin, keep reading the article!
Did this summary help you? Yes No. Log in Social login does not work in incognito and private browsers. Please log in with your username or email to continue. No account yet? Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Cookie Settings. Learn why people trust wikiHow.
Download Article Explore this Article methods. Related Articles. Article Summary. Method 1. Find something round that you can trace. Any round object will work. You can use a round glass, the bottom of a candle, or a circular piece of paper. Just make sure the rounded edge is smooth. Hold the round object on a piece of paper. Take the round part of the object and place it flat on the paper where you want to draw your circle.
Trace around the edge of the object. If there are any gaps in the circle after you move the round object, fill them in with the pencil. Method 2.
Without using any additional tools eg. Make a compass : Grasp the pen in your fist so that your thumb is uppermost and the pen points down, like holding a dagger. Using the same arm, place your elbow's funny-bone at the centre of the large sheet of paper. Rest the tip of the pen on the paper. Keeping your arm still, drag the paper round with your other hand so that it rotates under your funny-bone. The pen will draw a line as the circumference of a circle.
Its radius is the length of your forearm. Draw a straight line across the page. When the page is rolled up, the straight line becomes a circle: Objection 1: The circle is imperfect because it is hard to draw a straight line.
Response: This is true to some degree of all the solutions, but we can mitigate by using the bottom edge of the paper as a rule to keep the line straight. Objection 2: The circle is imperfect because it is hard to roll the paper into a perfect circle. Response: Keep rolling it until the circle becomes more perfect. You can draw two points which will be one diameter and then use a corner of the sheet and Thales's Theorem to draw as many points on the circle as you like. A bit more detail for the non-geometers: Thales's theorem says that if you connect a point on a circle with the two ends of a diameter you will get a right angle and, conversely, if a point forms a right angle when connected with the ends of a diameter then the point lies on that circle.
Therefore after choosing two points which shall be our diameter we use the corner of the sheet as a right angle and gently bend the sheet so that the two sides enclosing the corner align with our two points. We can do this in many ways and each will give us another point on the circle.
If the paper is large enough, you can use yourself as a compass. For example, you could make a mark in the centre of where you want the circle, and anchor a finger on it. With the pen in the other hand, and at full stretch, rotate about the anchored finger, leaving a circular trail as you go. You mighy want to experiment with other body parts to see which gives the best results. I reckon my nose would make a good anchor This answer is very different from the others and I'm not sure if it's too obscure, but technically it fits the rules I think.
Draw 5 stick figures. One holding a microphone, two holding a guitar, one holding a bass guitar and one sitting on a drumset. You have now drawn A Perfect Circle. It's debatable how many people would recognize this band. However if it is recognized, it arguably fits the criterion of being "a perfect circle" better than any attempt to draw an actual circle since those can never be absolutely perfect.
As the ink wicks into the paper, it will spread out in a perfect circle. Just as an "off the top" answer to this scenario that should be fairly close to perfect:. I want to take a moment as perfection is often something we don't realize how varied peoples accepted notions for this can be. The list goes on and on but I believe the point has been made. Simply bend the pen in a manner to where you can mark on the paper with the writing end and pin hold in place or create a pivot if you will, not the utensil itself the other end somewhere on the paper which would allow the pin to spin a full circle without leaving the paper surface.
Now rotate the pen degrees or spin the paper but this is getting long winded and you should have a 'perfect' circle. Take the cap off the pen, put it down vertically on the paper you may need to break off the little clip on it , and trace around it. If your pen doesn't have a cap, simply take it apart, remove the ink tube and tip, and use that to trace around the pen's body.
Tear off a small piece of the paper, poke a tiny hole in the small piece of paper with the tip of the pen, and hold it up to the sun.
0コメント