diff --git a/Design_Nass.m b/Design_Nass.m
new file mode 100644
index 0000000..cc559fb
--- /dev/null
+++ b/Design_Nass.m
@@ -0,0 +1,83 @@
+run Formule_Nass.m
+
+%% Bottom Plate
+BP = struct();
+BP.rad.int = 105 ; %mm
+BP.rad.ext = 152.5 ; %mm
+BP.leg.rad = 140 ; %mm
+BP.leg.ang = 2.5 ; %deg
+BP.density = 1000 ; %kg/m^3
+BP.k.ax = 1e7/4; %z
+BP.k.rad = 9e9/4; %x
+BP.k.rrad = 9e9/4; %y
+BP.ksi.ax = 10;
+BP.ksi.rad = 10;
+BP.ksi.rrad = 10;
+BP = updateDamping(BP);
+
+
+%% Tilt
+ry = struct();
+ry.m = smiData.Solid(26).mass+smiData.Solid(18).mass+smiData.Solid(10).mass;
+ry.k.h = 357e6/4; %y
+ry.k.rad = 555e6/4; %x
+ry.k.rrad = 238e6/4; %z
+ry.k.tilt = 1e4 ; % rz in actuator
+ry.ksi.h = 10;
+ry.ksi.rad = 10;
+ry.ksi.rrad = 10;
+ry.ksi.tilt = 10;
+ry = updateDamping(ry);
+
+
+%% Spindle
+rz = struct();
+rz.m = smiData.Solid(12).mass+6*smiData.Solid(20).mass+smiData.Solid(19).mass;
+rz.k.ax = 2e9; %x
+rz.k.rad = 7e8; %z
+rz.k.rrad = 7e8; %y
+rz.k.tilt = 1e5;
+rz.k.rot = 1e5;
+rz.ksi.ax = 10;
+rz.ksi.rad = 10;
+rz.ksi.rrad = 10;
+rz.ksi.tilt = 1;
+rz.ksi.rot = 1;
+rz = updateDamping(rz);
+
+%% Hexapod Symétrie
+hexapod = struct();
+hexapod.m = smiData.Solid(16).mass;
+hexapod.k.ax = (138e6/6)*1.2; %z
+hexapod.ksi.ax = 10;
+hexapod = updateDamping(hexapod);
+
+%% Axis Corrector
+axisc = struct();
+axisc.m = smiData.Solid(30).mass;
+axisc.k.ax = 1; % (N*m/deg))
+axisc.ksi.ax = 1;
+axisc = updateDamping(axisc);
+
+%% NASS
+nass = struct();
+nass.m = smiData.Solid(27).mass;
+nass.k.ax = 5e7; %z
+nass.ksi.ax = 10;
+nass = updateDamping(nass);
+
+%% Wobble
+wob = struct();
+wob.m = smiData.Solid(5).mass;
+wob.k.ax = 1e10;
+wob.ksi.ax = 10;
+wob = updateDamping(wob);
+
+%%
+function element = updateDamping(element)
+    field = fieldnames(element.k);
+    for i = 1:length(field)
+        element.c.(field{i}) = 1/element.ksi.(field{i})*sqrt(element.k.(field{i})/element.m);
+    end
+end
+
diff --git a/Test.m b/Formule_Nass.m
similarity index 96%
rename from Test.m
rename to Formule_Nass.m
index 767c7d9..416079a 100644
--- a/Test.m
+++ b/Formule_Nass.m
@@ -7,7 +7,7 @@ z_axis = [0 0 1];
 % of the base plate
 pos_base = [];
 pos_top = [];
-alpha_b = 90*deg2rad; % angle de décalage par rapport à 120 deg (pour positionner les supports bases)
+alpha_b = BP.leg.ang*deg2rad; % angle de décalage par rapport à 120 deg (pour positionner les supports bases)
 alpha_t = -30*deg2rad; % +- offset angle from 120 degree spacing on top
 height = 0.10; % 2 meter height in home configuration
 radius_b = 0.130; % rayon emplacement support base