Dear all, I have recently shifted from Proe2001 to Proe Wilodfire. I have one simple question: --- I want to make a plain flat Disc with Dia 10.2546mm & thickness 2.5487mm. My accuracy level is default one ie. 0.0012 I first make a model with this dimensions & then draw drawing to this part In this drawing when I show the dimensions from model I get dia as 10.2546 and thickness as 2.55mm . The same thing I see in model as dia 10.2456 and thickness as 2.55mm (But I gave thickness as 2.5487mm while modeling) So, Now I calculate the model properties as and the result is under : VOLUME = 2.1060443e+02 MM^3 SURFACE AREA = 2.4733018e+02 MM^2 DENSITY = 1.0300000e-03 GRAM / MM^3 MASS = 2.1692257e-01 GRAM CENTER OF GRAVITY with respect to _PRT0001 coordinate frame: X Y Z 0.0000000e+00 1.2750000e+00 0.0000000e+00 MM INERTIA with respect to _PRT0001 coordinate frame: (GRAM * MM^2) INERTIA TENSOR: Ixx Ixy Ixz 1.8958601e+00 0.0000000e+00 0.0000000e+00 Iyx Iyy Iyz 0.0000000e+00 2.8513610e+00 0.0000000e+00 Izx Izy Izz 0.0000000e+00 0.0000000e+00 1.8958602e+00 INERTIA at CENTER OF GRAVITY with respect to _PRT0001 coordinate frame: (GRAM * MM^2) INERTIA TENSOR: Ixx Ixy Ixz 1.5432253e+00 0.0000000e+00 0.0000000e+00 Iyx Iyy Iyz 0.0000000e+00 2.8513610e+00 0.0000000e+00 Izx Izy Izz 0.0000000e+00 0.0000000e+00 1.5432254e+00 PRINCIPAL MOMENTS OF INERTIA: (GRAM * MM^2) I1 I2 I3 1.5432252e+00 1.5432255e+00 2.8513610e+00 ROTATION MATRIX from _PRT0001 orientation to PRINCIPAL AXES: 0.00000 1.00000 0.00000 0.00000 0.00000 1.00000 1.00000 0.00000 0.00000 ROTATION ANGLES from _PRT0001 orientation to PRINCIPAL AXES (degrees): angles about x y z -90.000 0.000 -90.000 RADII OF GYRATION with respect to PRINCIPAL AXES: R1 R2 R3 2.6672412e+00 2.6672415e+00 3.6255486e+00 MM After doing this exercise I edit the protusion as give values to thickness as 2.5487mm the model is again regenerated for this dimensions and drawing also shows 2.5487mm as thickness... Now to cross very I calculate Mass properties as: VOLUME = 2.1049707e+02 MM^3 SURFACE AREA = 2.4728830e+02 MM^2 DENSITY = 1.0000000e+00 GRAM / MM^3 MASS = 2.1049707e+02 GRAM CENTER OF GRAVITY with respect to _PRT0001 coordinate frame: X Y Z 0.0000000e+00 1.2743500e+00 0.0000000e+00 MM INERTIA with respect to _PRT0001 coordinate frame: (GRAM * MM^2) INERTIA TENSOR: Ixx Ixy Ixz 1.8392374e+03 0.0000000e+00 0.0000000e+00 Iyx Iyy Iyz 0.0000000e+00 2.7669003e+03 0.0000000e+00 Izx Izy Izz 0.0000000e+00 0.0000000e+00 1.8392375e+03 INERTIA at CENTER OF GRAVITY with respect to _PRT0001 coordinate frame: (GRAM * MM^2) INERTIA TENSOR: Ixx Ixy Ixz 1.4973969e+03 0.0000000e+00 0.0000000e+00 Iyx Iyy Iyz 0.0000000e+00 2.7669003e+03 0.0000000e+00 Izx Izy Izz 0.0000000e+00 0.0000000e+00 1.4973970e+03 PRINCIPAL MOMENTS OF INERTIA: (GRAM * MM^2) I1 I2 I3 1.4973968e+03 1.4973971e+03 2.7669003e+03 ROTATION MATRIX from _PRT0001 orientation to PRINCIPAL AXES: 0.00000 1.00000 0.00000 0.00000 0.00000 1.00000 1.00000 0.00000 0.00000 ROTATION ANGLES from _PRT0001 orientation to PRINCIPAL AXES (degrees): angles about x y z -90.000 0.000 -90.000 RADII OF GYRATION with respect to PRINCIPAL AXES: R1 R2 R3 2.6671377e+00 2.6671379e+00 3.6255486e+00 MM Now I don't understand what has gone wrong in doing this. How come the mass properties change when I enter correct dimensions in both the ways ... This is something which is troubling me as whatever I prepare do not match in the end...Is it A Prowildfire BUG? thanks for replies Kuntal Jain India
