Years ago, we had a summer student create several models in Autocad MD4. These models have now been migrated to SW. We have also cleaned up the imports so that the innumerable extra reference planes and axes are gone.

Unfortunately, we believe the student created the models with a UCS somewhat cocked with respect to the WCS (apologize for the Autocad terms).

The result is that the SW models are slightly angled with respect to the SW coordinate system. It really is very odd - if you open the base sketch, sides can have vertical and horizontal contraints, but they are NOT vertical/horizontal with respect to the top/right/front planes. If you display the grid while editing the base sketch, you can see that the underlying grid of the sketch is itself cocked.

I have tried to see if there is a second coordinate system defined in the model, but can find nothing.

Making drawings from these cocked models (and there are many) is painful - is there any way to get the models reoriented to the SW planes/origin?

The attached model is a simple rectangular plate with a few holes, that illustrates the problem nicely. The model rotated about 1-2 degrees about the Z-axis (try highlighting the top plane while viewing the plate head-on), yet the contraints on the sides say they are horizontal/vertical.