I probably confused the situation with the drawings in there. I did however go back and embed the three images, just in case someone wants to see them.

Hopefully this will clear it up.

I can get the recessed areas to work - but the line highlighted in yellow is where I am struggling. I've tried sweeping two shapes (a trapezoid and a square) and neither seem to work? In my other design, I was able to draw a line, sweep another shape around that line, then do a boolean dif, followed by deleting the shape to create a recessed channel in the solid object.

Since my objects are now getting more complex, it's not working any longer?

Here is the drawing showing the two shapes I've tried sweeping, and the rail I've used to sweep around.



Hopefully this helps clear up my question?

Ryan.