Bloy,
I use that function. It works pretty fair at solving chaining problems. Trouble is that it is too easy to screw it up again. Once a chain is formed, the direction of all of the segments should be locked together, changing one should change them all by default.
I tried to make a gear (using the gear function) and then convert it to a surface to extrude it into a solid and it wouldn't do it. I'm not sure what I did wrong or if it can be done. I had a devil of time trying to close the chain, because the segments are all very small, and I could not easily organize them. "Reorganize" helped with it, but every time I tried to select the gear, I would wind up reversing a segment or two, which broke the chain again.
I will get used to the program someday. I have the 10 CD training series and that helps, providing I can find what I am looking for.
I now have a patch for the G83 function, and that seems to work for me for the problem below.
Thanks.
Bill