Can't scale two edge loops around the X axis I have these 2 edge loops and I want to scale them to be further apart, but using S + X and dragging the mouse won't move (along the Y and Z axis it works). I can set them apart manually by taking each one and moving it using G but I want them to be equally apart.



Here is a 'perspective' view of the shape, maybe I did something wrong that prevents me from scaling those loops.
You have 'Individual Origins' set as your pivot point for transformations in the 3D view header toolbar. At the minute each loop is scaling towards it's individual origin but because the loops have no thickness themselves nothing appears to be happening.

You need 'Median Point' set:



This will find the point in between the two edgeloops in 3d space and use that as the origin for transformations.