Is there a tutorial out there that shows how to loft from one solid to another like this.
Thanks John

I don't make a loft but a Network...
Join the left sides edges + top arcs edges (kill some left & right vertical arcs surfaces! )
surely some other methods! :)

There seem to be some duplicate surfaces.
Copy the arced rectangle edges into curves. Join the curves for one end of the loft.
Second end of the arc is the circle/chord curve.

Hi,

I think, loft is possible.



First, your model is a bunch of surfaces, most are useless I think.



You have to clean it to have only useful parts.



Next, trim the edges to have this result.
The cornered edge has to be joined before lofting
Then Loft between the edges.






Do it for the two parts.




Yep, Ben is right...
My method is longer with doing it in two parts...

Have fun and happy modeling.

You guys are the best

Thanks John