Does anyone know how to weave a cast net by hand?

It depends on how many eyes and length of the net you are weaving, for example, 4 meters long, 1000 eyes, 6.5 catties, about 200 pendants, it should be 4 meters times 2 times 3.14 equals to 25.1 meters, divided by 200 pendants, equals to 12.5 centimeters, and 12.5 centimeters is the distance between the pendants, use 51 meters of base line, and wrap it around two times, the first time to put on the eyes, the second to tie the pendant along the first loop, and then tie a knot, put on a lead pendant, leave one eye and tie another knot, leave one eye and tie another knot, then leave one eye and tie another knot, then leave one eye and tie another knot, then leave one eye and tie another knot, then leave one eye and tie another knot, then leave one eye and tie another knot. Tie a knot with a thinner thread at the second loop and the first loop's joint, put on the lead pendant, leave one eye and tie another knot, leave one eye and tie another knot, leave one eye and tie another knot, finish tying the pendant, leave two eyes 6.5 cm from the end of the first pendant, tie another knot, finish tying it 12.5 cm, and so on, tie the whole pendant, then tie a thin thread 6.5 cm away, 4 pendants apart, and then tie a thin thread 50 cm upwards, and finally tie an insert 50 cm upwards from the place where you tied it, and then tie a thin thread 50 cm upwards. Finally, 50 centimeters up from where you tied the threads, you tie the insertion threads, also 50 threads, and you're done.