How to get from blender to gmod

Ok i’ve been folowing some tutorials in blender and was wondering how to get it from my editor into the gmod spawn menu, how to generate texture files ect
can someone please give a step by step walktrough or a video to help me please?
Also i can export as SMD as i downloaded a plugin. Is this the right format?

Watch the video you see here:

SMD is the right format, but it does have to be compiled first. Seriously, just watch the video, goes through the whole process in like ten minutes, from making the model to putting it in-game.