Okay,
I extruded the the face along the desired path, and i wrote which method i used. It's in the model.
Follow me: At the start it's good, but when the path goes back up again, the extruded rounded face becomes slightly askew, rotates and doesn't end at a proper perpendicular end. Also leaves a minor start failure, the extruded face is placed for whatever reason 5 degrees off-axis.
Face along Path (curviloft): At the very start it's seems good, but then the form of the rounded tube becomes flat and rotates towards the end.
Extrude edges by face: Minor edge failure of extruded face (can be repaired with loft-tools), but makes a strange weaving pattern towards the end, doesn't end perpendicular at all for no apparent reason.
i didn't do edge follow me-plugin, it gives the same results as above.
I know of the plugin "round corner", as a emergency solution it could do, but it really messes up when the thickness of the model isn't equal from beginning to end. This plugin doesn't like to have/use fluent lines/curves.
In my model the edges should be rounded off from the top with a bezier-curve which beginns 4/5cm from edge and descents 3/4cm from top outer edges. From the bottom a 4cm curve which rises to a 0,5cm. Inbetween i leave it straight, because the thickness overall isn't equal, this measurement differs throughout. All i want is a true measurement of a rounded square (4cm along X-axis),
Hope i made it clear where the plugins produce the 'error'.
Greets,
Kerr
probe1a.skp