A Model Windmill.
The windmill being the simplest in construction of the working models, we will take it first. The model, with the necessary pictorial background, is to be enclosed in a case, which will bear somewhere on the front of it the legend forming the title of this chapter, and the sails will go merrily round on dropping a penny into the box, thus practically illustrating the old song, ‘Money makes the mill to go.’ The cost of the whole model and case will be something under 8s. Now for the construction.
We will make the case first. For this get some half-inch deal board, 12 in. wide, and plane it smooth on both sides. Cut the pieces for the back, top, bottom, and sides, and square them up true. The dimensions of these pieces are as follows: the back, 20 in. long and 12 in. wide; the top and bottom pieces, 12 in. long and 10 in. wide; and the two side pieces are each 20 in. long and 10 in. wide.
Having cut and trued up these pieces, proceed to form them into a box by joining the edges by dovetailing, if you are skilful at cabinet-making, or get some friendly carpenter to do it for you, if you are not up to the work. If you cannot manage either to do it yourself or to get it done for you, the parts can be joined with glue and screws, but the side pieces will have to be cut one inch shorter than for dovetailing, in order that the top and bottom pieces may fit in flush with the back piece.
The front of the box is to be closed by a door, of which the upper 12 in. is of glass. Make the door out of a piece of half-inch board, 8 in. by 11 in. for the bottom piece, and fasten to each end a strip of wood 20 in. long and 1⁄2 in. square, so that one end of each strip is flush with the lower edge of the board, leaving 12 in of each strip projecting beyond the upper edge.
These strips should have a groove 1⁄8 in. deep cut in them to hold the glass. This you had better get cut for you. Put your glass, which must be about 111⁄4 in. wide and 11 in. long, into the grooves, and the upper edge of it will be half an inch from the ends of the strips. Fasten it in by a cross-piece of wood 1⁄2 in. square and 11 in. long, glued and screwed to the two side strips.
If you prefer it, the glass can be put in the door after the manner of window-panes. In this case the side and top strips must have a rebate cut in them, and the top edge of the wooden portion served in the same way. You must choose for yourself which method you will adopt. Either will do, but the latter is perhaps the neater.
In the top of the right-hand end of the wooden portion cut a slot large enough to allow the necessary penny to pass freely. The door you will fasten to the box with two small brass hinges, and you must put a small brass hook on the other side of the box to keep it fastened. But it will be better if you do not hang the door till the inside arrangements are completed, for fear of breaking the glass.
Fig. 1.