In some cases, when you are doing something in needlework, it may be necessary to make a ball of a certain size and diameter. Just take and make it is unlikely to succeed. Here you need accuracy. To get the right product, a pattern of the ball is required. Then it will turn round and without corners. Of course, the choice of material for the ball is also of no small importance. He must be non-drag.
Of course, there are people who can rely on their eye and, through mathematical calculations, make a spherical product. But will the right ball come out? Consider how you can make it to the exact size.
How is a ball pattern made?
The easiest way is to make a ball with a diameter of not more than one meter. If the size is larger, some inconvenience may occur.
Usually a ball is made of petals of the same size and shape. They are glued together or sewn together along a drawn line. In this case, do not forget to leave allowances for seams.
If you make a ball of foam, you can make not individual petals, but linked. That is, you do not need to make each petal separately, but draw the necessary shape immediately on the foam rubber. In this case, there is no need to leave allowances for the seam. But this is only suitable for foam rubber.
When creating a ball of fabric, each petal is cut out separately and stitched. The seam should be imperceptible, the transition should be smooth.
Beginning of work
To get the correct pattern of the ball, you must know its diameter, that is, the apparent value.
Next, you need to determine how many petals the ball will consist of. A small one may consist of six. The larger the ball and its circumference, the more petals will be needed.
To find out the height of the petal, you need to divide the circumference into two.
To calculate the circumference of a ball, its diameter must be multiplied by a constant π = 3.14.
Accordingly, if the diameter of the ball is thirty centimeters, then the circumference is 30 * 3.14 = 94.2. The height of the petal will be 94.2 / 2 = 47.1 cm.
Next, you can calculate the width of the petal. If we want them to be eight, then the circumference of 94.2 is divided by 8, we get 11.775 cm.
Afterword
If for someone all these calculations are complicated, then you can look for a special calculation generator to get the correct pattern of the ball. Just enter the desired diameter and number of petals, and the program itself generates the size of the future ball (even with allowance for seams).
Having learned how to sew a ball from a fabric, the patterns need to be saved. Perhaps they will come in handy more than once.