2 shuctles.
The snowflake is madę in 2 rounds according to the diagram.
Round 1: rings and chains.
Round 2: rings and chains, but at the joins change che shucdes co curn che chain che righc way.
This snowflake can also be madę continuously by making a false chain (see page 5) ac the last chain in che first round.
2 shuttles.
The snowflake is madc in 2 rounds according to the diagram.