How do i convert a scametic file into a 3d model in the size of one block?

I think that if everybody could build something in minecraft with regular size block’s, And than export there building to a scametic file using mcedit, And than convert the scametic file to a 3d model in the size of one block it will be a lot easier to make 3d model’s for minecraft. But the problem is that i
.don’t know how to do it, As you can understand from the title

I will be very happy if some one will help me! :smiley: