Directions: Make a pattern for the vase in the following way: Draw a 21⁄2-in. circle. Using the same centre, draw a 1-in. circle inside the 21⁄2-in.
Through the centre of these circles draw a line 9 ins. long; 3⁄4 in. below the outer circle, over this centre line draw a line 1 in. long, 1⁄2 in. on one side and 1⁄2 in. on the other. Seven inches below this 1-in. line draw a 21⁄2-in. line, 11⁄4 in. on one side and 11⁄4 in. on the other. Connect the inside points of each line with the top line (see [design]), drawing lines between the two points. If the pattern is carefully developed from the drawing the metal will fold up in the right way for a vase. To do this, continue the tapering lines beyond the circle until the two lines intersect. With the point of the compass on the point of intersection, and the pencil point where the sides meet the 1-in. line, draw an arc of a circle any length. Using the same centre, open the compass until the pencil reaches the base lines. Draw an arc of a circle any length. Use your 30° and 60° angle and divide the half of the circle into 6 equal parts. Take one of these 6 divisions with your compass, and step off their distance on the large circle 12 times. You now have the exact circumference for the top of the vase. Draw lines from these points to the point of intersection. This marks off the small circle or base. Connect the 12-in. point on the top and bottom with solid lines. Cut this pattern out and lay it on the metal. Cut out the metal and fold up. It should fit the drawing. The edges should meet close. Clean, bind, and solder as you did with the copper work.
Base: Use the hard wood block and drive up the 5-in. disc over the depression. Shape it as nearly as you can like the design, using the same method as you did with the copper bowl. Keep annealing this brass whenever it feels springy. Place it on the anvil stake. Use the driving hammer and shape it.
Some Problems in Copper and Brass Work Made by Boys