You will need
  • - graph paper;
  • pencil;
  • - the range;
  • - the tape;
  • eraser.
Take the measuring tape and measure data such as the length of the neck of the product z find out the length of the neck of the backrest and shelves (it is possible to measure the pattern and finished product). In addition, you will need to know the VC (the height of the hood). Loop the ribbon through the head from the point the base of the neck to the left to the same point on the right. The resulting distance, divide by two, this will be VK.
Take a sheet of graph paper or tracing paper, pencil, ruler and start to build patterns hood. First, build a right angle with the vertex at point O. Put vertically the value of the incline the line of vrachevanie, it is usually 2-5 cm Mark point of the letter K.
From this point take a horizontal line to the right on a 0-2 cm This will be the point K1. From it, measure the distance Z, with the addition of two inches to tuck (tuck if needed). Where this line intersects with the horizontal line On, mark the point K2. For example, if Z=21, К1К2=21+2=23, see
Point To up put the height of the hoodand (with the addition of 1-10 cm for loose fit) and mark a point K3. For example, if VC=33 cm, and the average gain you expect, KK3=33+5=38, see
From point K3 to the right aside the width of the hoodand at the top, the value К1К2 increase to increase free fit across the width (0-5 cm). Mark the resulting point K4.
Connect the line points K4 and K2. From the point K4 put down the size of the bevel hoodand in front, usually this value is equal to 0-4, see Designate a point K41.
Angle К4К3К divide into two by the bisector and mark on it point K31 at a distance of 3.5-5 cm from the corner. Gently trace the line of the hoodand through the resulting points K31, K41, K1.
Draw the front line of the hoodand its form depends on the model.
Complete line of Tachibana hood. To do this, divide the segment in half and raise your К1К2 from the obtained point perpendicular 1-1. 5 cm. Gradually circle cut К1К6К2.