Okay, a quick test of a simple solid shows that one can in fact import the iges into UG and sew the surfaces together to come up with a valid b-rep solid. With more complex solids, or assemblies it could become prohibitively time consuming, as each surface needs to be selected. In addition, with complex models, blends may not touch, and the sew will fail.

I notice that Solids++ offers a step translator. That would be the only translator you really need, as every major cad system supports step, and the output from step can be a valid b-rep solid.

Here's a picture of the imported, sewn solid, shown in section...

Hi Mike, that's great, that looks like it should be one method that will work for now.


> With more complex solids, or assemblies it could become prohibitively
> time consuming, as each surface needs to be selected.

Do you mean you have to click them one-by-one in UG? I'm surprised they don't have any window select or "Select All" type function...


> In addition, with complex models, blends may not touch, and the sew will fail.

In general stuff like blends are calculated in MoI to a tolerance of 0.001 units. So if you have any control over the tolerance that UG sew uses, just make sure it is not less than that amount, maybe around twice that would be a good tolerance to use.

- Michael