I use 18 pairs of bobbins for the center with the spiders, at the sides I make a whole stitch (with a pair that always stays at the side) and twist the pair twice round the side-pin. This will make a little loop to 'sew' on the other parts while working.
I'm working on spider 15 now, just following the lines on the pattern.
Here are some close-ups of the 'half stitch trail' and the 'Torchon ground', just turning the corner to start another row of spiders.
Bobbin lace is fun to do!