Fig. 27.
The edges of the tray may be made of any height that suits the maker, but never try to turn over less than ¼ inch at the edge nor any more than ⅜ inch, as either operation is very difficult, if not impossible.
The tin is taken up considerably in the turning and the ¼ inch marked off for the turned edge of the tray described above will be about ³⁄₁₆ of an inch when turned.
This turning operation is used a great deal for finishing the edges of different cylindrical and curved surfaces used in the tin can work, as a sharp thin edge should never be left about the work.
Making an Ash Tray and Match Box Holder.—Make a tray about 6 inches in diameter and ¾ of an inch in height when the edge is turned over, and then find a smaller can about 2½ inches in diameter, such as a soup or baking powder can. Scribe a line around this can 1 inch from the base. Cut the can down to this line and place the can bottom up in the center of the bottom of the first tray, holding it in position with a stick of wood and soldering it to the tray.
Fig. 28.
Fig. 29.