Model Analysis > Creo Behavioral Modeling Tools > Analyses > Clearance and Creepage Analysis > Mesh Size and Tolerance Options > Guidelines for the Mesh Size
  
Guidelines for the Mesh Size
Use the following guidelines to specify the mesh size for the clearance analysis:
If the approximate length of the expected violation paths is known, the mesh size should be less than or equal to 1/10 of the approximate length.
If small holes, slots, or grooves in the model are involved in violations, the mesh size should be less than or equal to 1/2 of the diameter of the holes or width of the slots or grooves.
If the approximate distance between two nets or components is known, the mesh size should be less than or equal to 1/10 of the approximate distance.
If the accuracy of a clearance analysis is unsatisfactory, reduce the mesh size for a better approximation of the assembly model while meshing. The computation time and memory consumption increases as the mesh size decreases. Thus, to ensure accuracy, make the mesh size significantly smaller than the width of the smallest feature.
If the performance of a clearance analysis is unsatisfactory, increase the mesh size to improve the performance of the analysis.