Blender UV Unwrap goes beyond picture limit

Support Materials and Textures
1

Screenshot 2014-12-06 14.47.32.png1920×1080 129 KB

Whenever I unwrap this pogo stick 3d model, these go beyond the page limit, so that when i export them, the entire uv map is messed up.

I cannot use island margin on smart uv project, as this makes it incompatible with unity3d, the engine that I use these 3d models in. Please, tell me a way to fix this issue so that everything stays in the bounds of the picture.

2

If you want the UVs in the image limit then just select the verts in the UV/Image editor and scale / rotate / move them just as you would in the 3d view

I cannot use island margin on smart uv project, as this makes it incompatible with unity3d
What is incompatible ?