Your main problem is the trimmed edges are way out of tolerance.
Here is what those edges would look like if trimmed and joined accurately.
Import this file to compare: ExampleX.3dm (2.4 MB)
I would suggest setting the absolute tolerance to .0001" for a model with features this small. But even at .001 tolerance your edges are not where they should be
Thank You very much for your help on this…
To be totally honest I didn’t realize I had my absolute tolerances set so low… ( I normally have them at where you suggested ) so I will chalk this up as " Operator Error! ) Thanks again…