the grid has to be 1 square meter and 4cm deep. It is for a drainage sump. The grid spacing is therefore not critical. Could a grid this size ever support a 5 tonne Uniformly distributed load. The load it will bear will actually come from a forklift sitting on it ( worst case scenario is...
I started using Solid edge in University. Found it to be brilliant for what i was doing (designing a gear box). Found it really easy to use and I know that that is one of the reasons my university decided to use the package. No problems with it at all. However I do not have alot to compare it...