Well, what you need to do is make a schematic by copying the blocks that incorporate your creation. Since you can only copy cuboid areas choose a bottom corner and top corner of the area you want to copy. You can use the wand for this. There are other ways to select areas but to keep this simple, just say you use the wand and choose the cuboid space to copy. Then the best thing to do imho, is to stand at the front center of the object, on the ground in front of it, and type in //copy. You should get a message that says blocks coppied. Then you can save the schematic by typing in //schematic save mcedit claptrap. If you're on sp you will find the file in your schematics folder. To upload it here, you must zip it. They only allow zip files. Good luck! I do want to download it!