How to scale all the edges proportionally I have a simple mesh and i have extruded the edges and want to scale little outside with the all edges proportionally. I have applied scale and rotation and remove doubles did not work. I have tried Alt+s that also not work. I change the pivot to individual origins also not work. Whats else to be try to make my mesh have a equal or proportional scale.
Alt+S command should do the job here. Don't know why it doesn't? What you can do is extrude the bottom edge loop downwards (E,Z), select the extruded face loop, press E,RMB, then Alt+S, S (to enable even thickness mode). Finally delete the unnecessary geometry.


Note: After doing this the edges lenghts are still not perfect. It's because the model you provided isn't perfect too.