How to make a spotted dove cover

One, the production of the door frame:

1. Material: diameter of Φ2 ~ 2.5mm (Φ2.3 is the best), the brand "6 tungsten-manganese" spring steel wire. Too fine to insert, too thick total weight increase, dozens of sets of back on the mountain is too heavy.

2. Gantry size as shown:

There are two kinds of structure (see picture): one-piece, split type

3. After the heat treatment: 350 ° C to 380 ° C, insulation for one hour, and then the furnace cooling naturally, and finally shaping correction and painting (black or brown best)

Two, the production of the collar:

1. Material: Nylon coiled line (black or brown) used in street shoe mending mills, or "Fishing Lang" brand fishing line, cut into single lines of 580mm in length;

2. Fold a few single lines, tie a knot of Φ2mm or so, and then twist them into a Φ1 ~ 1.2mm single loop with a single strand of wire;

3. Then make the strands into a number of single loops of Φ80mm;

4. Shape the finished single loops.

Three, assembly:

Left and right door frame assembly according to the figure, in turn, loaded with rings, between the rings as shown in the figure, the size of the two sets of stacked for the diameter of 1/3, which is conducive to improving the rate of chickens, most of my two rings at the same time to set the neck of the chickens, it is not easy to run chickens, such a layout is the result of my experience over the years, and is expected to learn from you.

There is another rule of thumb, that is, the ring will be bundled on the door before the frame, to smear a little oil on the steel wire beam, in the glue fixing, while the glue is not cured, will be the ring on the glue place to rotate a few times, remember not to stranded with the steel wire, which is conducive to the use of the future shaping and positional adjustments.