Mesh Tolerance Settings
File: PVE-4048, Last Updated: FEb 17 2010, By: LRB
What impact does the mesh tolerance option have on the mesh produced by SolidWorks Simulation?
Caution: every time the mesh size is changed, the tolerance is adjusted to 5% of the mesh size. This is a very nasty feature! Keep your eye on the tolerance and set it back the to value you require after each mesh size change.
As the mesh tolerance increases, exterior model details disappear from the mesh. This block is 5 x 5 x 1 inch high. Each feature is 1 x 1 inch. Feature height changes as shown.
SolidWorks Simulation can mesh the object with very coarse mesh sizes, as long as the tolerance is fine enough:
Here the extruded bosses are replaced with cut slots: 1, 0.5, 0.25 and 0.125″ wide all the way through the same 5 x 5 x 1″ block. When the tolerance is too coarse, the mesh fails:
Watch for this reason for mesh failure. If the cut features are not desired in the mesh, they have to be removed from the model.