Hi,

I am modeling a part that looks like this: 

It is a disk with 300 ellipses cut through it. I need to slice it (with curved slices) like this: The slices are all different sizes. This procedure works great, until I increase the curvature of the top and bottom faces (which I need to do)

The issues I have been encountering:

1. Invalid faces

2. Invalid Geometry errors (likely caused by the slices hitting an edge of one of the elliptical holes, resulting in zero-thickness geometry)

    

The outer diameter of this model is about 0.38 mm (not sure if this would cause rounding errors with the holes)

I have attached a zip file of the part.

Thanks!