Today I did 2 long Z scans (between 20 and 100 mm then 100 mm to 110 mm) with 0.05 mm step size and median/average filters order 10 and could see the phase transition at Z = 37.6 mm and Z = 104.95 mm.
It means Z_center = 71.275mm.
The XY map started with 70 mm radius, median/average filters order 10 for a ~14h long measurement Pt = 6.541 W and Pin = 7.582 W.
It means that laser will be on up to December 30th for the 3D measurements.