This is a mix mash between two different makes. First this is the original AndyGadget's version http://www.thingiverse.com/thing:455093 that I made the source for but then I saw DanielStein's version @ http://www.thingiverse.com/thing:479357 and loved his take on it. Well, his is larger than the original one to accommodate his snapping mechanism so I decided to give it a whirl myself. I kept the dimensions of the original and just added the snapping together mechanism. You may glue it or just snap it and, as I said, this still has all of the holes, and pegs, of the original. From the original I repost his instructions - The rotor sits on the spindle and then the lid is glued on with cyanoacrylate adhesive. However, you will get best performance if you slightly sand the parts in contact to get rid of any roughness left from the printing. A few drops of light oil in the works before gluing will help things too. Reducing friction is the name of the game. , This version allows snapping them together so you may do it that way or to increase the bond you may glue it as well.