P.S.: As you might have noticed in the file above, the Platonic and its use in the Cloner, has some structural requirements. So I have build a Platonic Guid. See file. The “collar” of this guide will support the border-contacts.
I hope that helps a little bit.
Scene file
You’re very welcome, David, please have a look at the scene file below.
Answer 1
You could leave the file, set the Cube>Segments Y and Z to 1 and place the whole group under a Subdivision Surface.
Alternatively, the Cube way down in the Hierarchy is the one to swap out with a Cylinder, add enough height segments.
Set up the Cylinder -orientation X (+ or _ doesn’t matter. Select the Cube, then “Shift-key and C”, type in replace… click on replace with, press return. The cursor changes and pick the Cylinder with it, done.
Answer 2
Since the Spline Warp is set to “Fit Spline”, both work in the sam way, hence the confusion. The Spline size refers to the complete Spline, the Size [only] to the actual object-“length” populating the spline.
Answer 3
Have a look into the scene file. Both methods are good, each might have something that works nicer for some cases. The Spline wrap allows for all kind of objects, the Sweep for a simple set up with nonetheless many options to adjust. Perhaps another day, I would have used a Sweep. So, no particular reason. Nice that you explored it. I love finding alternatives, for many reasons.
Answer 4
There are three Nulls in it. To top one just groups things, which helps not only to organize the scene. The second one is needed to hold the Twist on the same level as the Array, so I limit the “influence” of the twist to just this, and nothing above. The third one is more to keep the Objects independent from the the Array or from the [now] Cloner as well. IF things under a null, e.g., in teh Cloner, they will be seen as one object. And for the Array, I can rotate things without going crazy, try it with out on the Array.
Scene file
https://www.amazon.com/clouddrive/share/2xJJmHR9n7MpU9gZs0YaXIWyXZMfOFmJGah3TzJT61g
Enjoy the exploration.