Attaching fan blades

I've looked around but I am still ocnfused. I am trying to make a fan, I made the different blades and the cneter part but I dont know how to attach them all together so if I pick it up, it stays as one. I am sorry for the stupidest of stupd questions but I am stupid

So what your saying is, you made the fan and how u want to pick it up all at once... well just click a peace hold dont CTRL and then click the other peaces and now they should all be one... if you want to group them just right click and group.

I don't think grouping does anything for ingame connections.... I asume all the pieces are func_physbox ents? if so, just select them all and make it one entity. You could also connect the individual pieces together with phys_constraint ents, but the only benifit of that would be that you could then make it fly apart when you wanted.

Please learn to type subjects relating to your actual problem instead of, er, noobish and unhelpful ones...