Hi Martin, yup I do want to add in a variety of analysis tools. In this particular case I didn't really use any special tools actually, I just exported different sets of objects until I found the one that was not working and then used Edit > Separate on that one and repeated that until I found which particular surface was giving it trouble, and then did a close examination of that particular surface, looking along the edges and doing window selections at juncture points and watched the number of selected objects readout to see if any tiny edges were present.

But some tool that would automate all of that would certainly be nice too! Right now one holdup for that is figuring out where to put such tools in the UI. I will probably be making an "extended object properties" dialog where I will be able to put in a whole lot of stuff like that without cluttering up the top level UI.

- Michael