I've taught it many times, but in person and in a message or two. Sorry I don't have good pictures. Coiling with 3 loops takes about 4 seconds once you know how. It's all in the wrist. I don't even wear gloves for the 1/2" 3tpi blades.
Here's a picture one where I've coiled three loops, expanded one loop in preparation for holding the three on the floor with one foot to coil with 5 loops shown in the second photo. The third picture is one coiled with 7 loops (just to see if I can do it). 7 loops is never necessary it's mostly for showing off.
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I can coil three loops in the air but it's easier to hold the blade vertically with the bottom of the band against the floor, step on it with one foot, grab the band on the sides with both hands, and bend so the top of the loop moves towards me while bringing both hands together and crossing. Like my piano teacher always said, "everything's easy once you know how."
For me the challenging blades are for the Woodmizer sawmill - long, wide, thick steel, wicked teeth. My bandsaw blade-making guy can coil these in the air with no effort. I have to think about it and take my time so I don't get hurt. Wear heavy jeans, leather gloves and eye protection!
If I can find the time I could probably make a series of photos that the procedure.
JKJ