Make a Solar Cooking Oven do it yourself simple enough. The author of this model of a solar furnace clearly decided to demonstrate this. All structural elements were made without any special technological refinements or special special tools.
Materials and tools that the author used to create this solar stove:
1) moisture resistant plywood with a thickness of about 3 mm
2) a sheet of metal with a thickness of 0.5 mm, roofing or galvanized iron may also be suitable
3) 4 by 4 mm wooden blocks
4) several boards with a thickness of 20 mm and a total length of 400 cm
5) narrow glass fixing rail
6) mirrors
7) heat-resistant black paint
8) a pair of glass measuring 500 by 500 mm
9) pens
10) nails, screws
11) jigsaw
12) saw
13) hammer
14) screwdriver
15) metal scissors
16) silicone sealant
17) mineral wool
Consider the manufacturing process of a solar furnace, the main elements of its design and assembly steps.
After all the materials necessary for the construction of the solar furnace were found and prepared, the author proceeded directly to the construction of the main frame of the furnace.
For this, 4 racks were cut from a wooden bar. On these racks, with the help of screws and nails, the main part of the furnace will be installed. Racks are made in pairs: 2 rear racks 52.6 cm long, and 2 front racks 26.7 cm.
The difference in the length of the racks is made specifically to take into account the inclination of the furnace, which is needed so that it is exposed to the rays of the sun at a right angle.
The supporting walls of the frame of the solar furnace were made of a sheet of plywood measuring 150 cm by 150 cm. The lower part of the frame is 60.5 by 67.5 cm and is also made of plywood.
After which all parts of the frame are assembled in a single design:
The next step, the author began to manufacture a frame for glass, which will close the chamber for the preparation of the future solar furnace. The frame was made of boards 549 mm long and 60 mm wide. These boards are interconnected, and a rail is mounted inside the resulting frame, on which the glass will be mounted.
In order to install the assembled frame, it is necessary to prepare the site on the main frame of the solar furnace. A kind of subframe is also made of boards and small bars, so that the inner hole is just right under the size of the frame for installing glass. Almost all fastenings are made using ordinary nails.
After that, the assembled frame with a rail for fastening the glasses is installed on the prepared site in the supporting frame of the solar furnace.
Then the author began to manufacture a cooking chamber. Its author decided to make a sheet of metal 0.5 mm thick. The sheet was marked and then cuts were made so that when bending, a kind of box was obtained, which was then fastened in the frame of the solar furnace with nails.
Then metal parts are cut out with scissors for metal, where heating will occur. Incisions are made on the sides, a bend is made, and the sheet is inserted into the future stove and fixed. It is in this metal box that the food will be cooked.
In order to increase the heating efficiency and temperature inside the chamber, the inner surface of the metal box is painted with black heat-resistant paint.
Then the author cut out glass, which was subsequently fixed to the frame using silicone sealant. On the upper bar of the frame, on which the glass is fixed, hinges were installed. The cover of the solar furnace will be fixed to these loops. The lid itself is cut out of a plywood sheet so that when closed it completely protects the glass of the solar furnace. Mirrors were mounted on the inside of the lid.
In order to make it convenient to open the mirror cover and the bar with glass, the author decided to attach ordinary handles to them for of furniture.
It is also worth noting that for the full operation of the solar furnace, it is necessary to insulate it. The author used mineral wool in order to insulate the interior of the construction of the solar furnace. This is clearly visible in the video, which shows the entire process of manufacturing the stove.