Dax - square of144

I am watching this Gann square on the Dax.It is basically 2 squares of 1440 ie 2880 points/288 days.In the first chart the mid point and ending point both called significant turns ie 144 and 288 days which suggests the market has vibrated to this cycle in the past.In the first chart the declining 45 degree diagonal defined the downtrend.In the second chart the rising 45 degree diagonal has defined the uptrend and was broken,(although we have managed to make a new high.)288 days may be another important turn.288 days is on Wednesday,although we should allow 1-2 days either side.