Smoothing makes a mess of faces

[changrilla]

Hi. I'm hoping there's a solution to this. I want to smooth the edge contours of a guitar body but it makes a bit of a mess of the faces. 

Edges selected: https://mgcsoft.com/Wings/EdgeFacesSelected.jpg

After smoothing: https://mgcsoft.com/Wings/EdgeFacesSmoothed.jpg

Any way of avoiding the unwanted edges. Cheers, Gordon

[kenmo]

Looking at your model it appears to be a topology issue. Too many tris and n-gons. Smoothing, sub-d, etc usually require good edge loops and quad topology. Edge loops is hard to obtain with tris or n-gons.

That is my experience from using Blender, Hexagon 3D and Silo3D. 

I have not used Wings3D for several years but I do frequently drop by to see if there are any updates or improvements in Wings3D which wetted my interest in 3D modeling.