I made several tests now. It's logical but not intuitive. I hope I found the principle behind:
even when the path is circular (like your chain), it has the beginning and the end. You can see it, for example, if you change the control "point" diameter slightly - there is a place where the circle chain is broken because its length is not dividable by one chain part length. If you rotate the control point where the path beginning/end is, it really moves the chain along the path. The rotation of other control points has no effect.
So, if you know a set of magic constants (control point diameters for usual LEGO gears), set the correct diameter and rotate the correct control point, you should get a nicely fitting result.
EDIT: I assume you use the nested mode, of course.
Which reminds me: Roland, could you add some guide/help about the set of gears diameters, please? I have never known if the correct one for gear24 is 30 or 30.5 or whatever else (for example)...
even when the path is circular (like your chain), it has the beginning and the end. You can see it, for example, if you change the control "point" diameter slightly - there is a place where the circle chain is broken because its length is not dividable by one chain part length. If you rotate the control point where the path beginning/end is, it really moves the chain along the path. The rotation of other control points has no effect.
So, if you know a set of magic constants (control point diameters for usual LEGO gears), set the correct diameter and rotate the correct control point, you should get a nicely fitting result.
EDIT: I assume you use the nested mode, of course.
Which reminds me: Roland, could you add some guide/help about the set of gears diameters, please? I have never known if the correct one for gear24 is 30 or 30.5 or whatever else (for example)...