OK Guys this is a short Update from this afternoons earlier post. I decided to work with what I had so using the line tool I created faces between the endpoints on each arc segment created by Shape Bender. This took AGES to do as certain faces were not flat so I simply ignored its inaccuracies and created extra vertices or edges using the line tool , thereby joining opposing corners of a rectangular face effectively splitting it into two triangles which formed individual faces but at least there was a surface in place. I then Copy Moved the entire thread and created a group but found that when I Copy Moved it to join the end of the previous thread that the outer and inner diameters were missalighned. So even if the two edges of the inner thread diameter did meet up when joining two threads the outer surface of the threads were not so it looked like a Chip had been removed from the thread. I moved the lines equal distances untill they met in the middle but this is a horraible approach and increases the inaccuracy of the model which is poor anyway. I think while SketchUp is a usefull application it fails in modelling small accurate components and is more suited to larger architectural projects. That combined with Shape Benders inherrent bugs make 3D modeling of machine components rather frustrating and inaccurate. Anyway Im going to upload a picture of the finished item. Im rather dissapointed by it at present so may redo it at some point in the future. Whether or not its using sketchup remains to be seen.
http://i265.photobucket.com/albums/ii219/GfxMan2008/ACMEThreadFailure5.jpg