@fcwilt here it is
I still need some tweeking, but almost complete. I will make a new one tomorrow. I will adjust accoring to your explanation. Thanks
RepRapFirmware height map file v2 generated at 2022-04-04 20:58, min error -0.880, max error 2.263, mean 0.810, deviation 0.709
axis0,axis1,min0,max0,min1,max1,radius,spacing0,spacing1,num0,num1
X,Y,0.00,270.00,0.00,240.00,-1.00,20.00,20.00,14,13
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 2.263, 2.043, 1.743, 1.447, 1.213, 0.913, 0.627, 0.383, 0.125, -0.110, -0.465, -0.785, -0.880
0, 2.207, 1.983, 1.760, 1.435, 1.195, 0.965, 0.688, 0.438, 0.215, -0.005, -0.305, -0.615, -0.757
0, 2.155, 1.950, 1.703, 1.398, 1.205, 0.980, 0.735, 0.490, 0.260, 0.075, -0.235, -0.510, -0.667
0, 2.078, 1.885, 1.642, 1.388, 1.160, 0.978, 0.765, 0.518, 0.323, 0.178, -0.145, -0.397, -0.525
0, 1.983, 1.820, 1.628, 1.388, 1.205, 1.015, 0.785, 0.562, 0.390, 0.235, -0.027, -0.300, -0.428
0, 1.945, 1.780, 1.553, 1.375, 1.215, 1.005, 0.825, 0.615, 0.420, 0.268, -0.027, -0.207, -0.342
0, 1.855, 1.693, 1.540, 1.308, 1.148, 0.993, 0.843, 0.655, 0.500, 0.358, 0.103, -0.075, -0.182
0, 1.767, 1.648, 1.470, 1.305, 1.148, 1.040, 0.892, 0.735, 0.582, 0.442, 0.255, 0.068, -0.055
0, 1.668, 1.575, 1.443, 1.257, 1.160, 1.030, 0.895, 0.763, 0.625, 0.510, 0.345, 0.173, 0.058
0, 1.580, 1.485, 1.355, 1.240, 1.130, 1.013, 0.885, 0.765, 0.648, 0.543, 0.405, 0.245, 0.175
0, 1.513, 1.425, 1.320, 1.210, 1.105, 1.005, 0.898, 0.793, 0.690, 0.610, 0.490, 0.350, 0.295
0, 1.425, 1.358, 1.263, 1.168, 1.092, 1.005, 0.910, 0.815, 0.730, 0.663, 0.567, 0.447, 0.408