- The vertical frame
- Support the amounts
- The cladding of the walls
- Complete and rigidify the structure of the aviary
- The cover
- The nest
- Assemble the nest
- Rigidize the edges of the roof
- Anchor the amounts
With its sleek roof with curved eight-sided, this elegant construction, signed David Toneguzzo, draws inspiration from the romantic end of the century: the nineteenth of course! Entirely metallic and embellished with a scroll frieze, it has this side "kitch"which seduces lovers of pleasure gardens.
achievement: 120 to 150 hours
cost: 610 €
mini equipment: welding machine, material saw, circular saws and jigs, riveting pliers
See the plan of this realization (in pdf): An aviary of charm: the plan
Built on a pre-existing concrete slab, the aviary has a curved door and houses, luxury attic, a "nest"Its size, which resumes its octagonal shape, its frame, welded metal profiles, requires a proper control of metal work in general and arc welding in particular.To achieve it, it requires a welding machine, a metal chain saw, a circular saw, a jigsaw, a drill, and a riveting pliers (these are "pop" rivets).
■ Uprights, upper sleepers, tie-rods and punch are cut in round tube Ø 30 mm. The lower rails are 40 x 40 x 3 mm angle: it is also used to manufacture the mounting tabs amounts. The curved rafters are made of flat iron 40 x 3 mm, easy to bend.
■ The door and its frame are made of 14 mm round (solid) iron: its cross bars, the ornamental bars and the frame of the nest are made of 12 mm round iron. The scrolls and the finial adorning the punch were bought in the specialized trade, like the ball which is stuck at the top of the nest.
■ The aviary is covered with a 1 mm galvanized steel sheet, while the walls are covered with similar wire mesh. The walls, roof and bottom of the nest are cut in CTB-X plywood 12 mm thick.
The vertical frame
The octagonal plan of the aviary is in a circle with a diameter of 1570 mm. In fact, its dimensions were calculated according to the size of the volutes, which determines the length of the decorative frieze. So the width of the walls (1200 mm).
■ After tracing the octagon, drill at each corner a hole about twenty centimeters deep in the chisel or hammer chisel. Then break eight 20 cm segments into the angle and open them by 10 cm to form the anchors. Once welded to the base of each stud, seal them in the holes with the quick cement, supporting them to maintain their verticality and spacing. When the cement has made its grip, connect the uprights by the high and low ties (or base). At this level, leave 5 mm of day under the angles and tilt slightly so that the water does not stagnate.
Support the amounts
To obtain a perfect verticality of the uprights, it is necessary to support them carefully before sealing them (with prompt cement) in the holes dug in the existing concrete slab.
Its editing, quite delicate, requires to perfectly center the punch. Difficulty that the author has solved by making this piece in a tube of 410 cm, equipped with a flat iron foot. Install the set in the center of the aviary, previously spotted on the ground, and weld it to the links. The latter, arranged in a cross, are themselves welded at each end to mid-length of the corresponding high crosspieces.
■ At the top of the roof, the crossbowmen meet on a small octagon of 40 mm side. Made of 14 mm round iron (width of the rafters), it is connected to the punch by four small spacers of the same caliber. Be sure to bend it 22.5° to the plane of the aviary to orient its angles to the middle of the walls. Weld the rafters on the small octagon and, at the bottom, at the top of the posts where they should slightly overflow. Finally, weld the decorative finial to the top of the roof.
The cladding of the walls
The door frame and its "frame" are made in the same way: a low crossbar and a hanger (cold formed) assembled with two uprights. Only the dimensions differ so that the first fits into the second. To provide the desired rigidity, the door frame is reinforced by two intermediate cross and adorned at the top of two large scrolls. The joint is provided by two hinges to be welded, and the closure by a latch also welded.
■ The frieze is delimited by two round irons of Ø 12 mm, welded at each end to the uprights. Six irons of the same diameter connect, at the top and at mid-height, the frame of door to the frame: those of the high prolonging the frieze. The grid panels are laid last, temporarily bridling the uprights to comfortably perform the welding work.
Complete and rigidify the structure of the aviary
The structure of the aviary must be complete and well stiffened before receiving its dressing. Which implies the laying of the "Door block"and that of the frame whose crossbowmen, mounted with care, all have the same curve.
The sheets are cut from a template made of hardboard (Isorel), whose dimensions are measured in situ. Their 90° bend and festooning were done by a specialized company. During the installation, our reader, alone to manipulate the sheets, had to cut each plate in two for the setting up before assembling the two parts by riveting. Plate and flat irons were drilled together to receive the rivets. It was necessary to complete the frame with 12 mm round iron to support the overhang of the roof.
Given its size, its assembly takes place inside the aviary: it consists in fact of 425 mm uprights and crosspieces of 400 mm in length. Her "frame"consists of eight 580 mm x 12 mm irons, welded to a short punch and terminated by a decorative ball, fastening brackets, welded to the frame, are provided to screw the bottom of 960 x 960 mm, the 400 x 545 mm roof panels and 400 x 400 mm walls, one of which has a jagged cut-out opening like the hardboard festooning and the nest is suspended in the center of the roof. Aviary with a volute welded at each end It is stabilized by 4 12 mm round iron spacers, which connect it to the uprights and which at the same time constitute perches for the birds.
Assemble the nest
Too wide to pass through the door, the nest must be assembled inside the aviary: here, before covering the roof of the aviary. Once finished, it will be necessary to support it at a good height to weld the volute used to suspend it.
Rigidize the edges of the roof
The edges of the roof proving too soft, it was necessary to add on the periphery a round iron of 12 mm. Although it is heavier to handle, the 15/10 sheet offers better rigidity. In addition to the volute, four spacers bridle the nest to the walls of the aviary. One of them supports a small "terrace"plywood.
Non-galvanized metal elements are treated with rustproofing followed by decorative metal paint. The fibreboards and plywood are tinted (cherry), then protected by two layers of marine varnish interspersed with a ginning. The varnish will facilitate the cleaning of the soil inside the nest. Let dry well before introducing your winged friends.
Anchor the amounts
In the absence of a concrete slab, the simplest is to anchor the uprights on concrete pads embedded in the ground. Be sure to respect the level of the set. The festoon of the nest was later replaced by its equivalent galvanized sheet to unify with that of the aviary. To enhance the appearance "retro", we can prefer zinc to galvanized sheet...