very short pinch base
each coil must be joined, one at a time, or they will fall off!
three kinds of coils
have some 'negative space' to give it some 'transparency'
must have overall form, that goes with types of coils and the pattern that they make. Make sure the edge 'breaks the plane" - not just flat/straight across the top
must show Rhythm
must be at least 8 coils high - should be over 4'' fired.