About this 3D model

UPDATE (5/25/2018): I have attached exploded assembly pictures to help in solving if help is needed UPDATE (6/28/2018): The "g" piece was not sitting flat as oriented in the .stl file. "g_fixed" .stl has been uploaded and the original "g" .stl has been removed. My daughter wanted a harder puzzle than the 3x3 Puzzle Cylinder I posted recently, so here it is.......which is a LOT harder! The general concept is the same as puzzle cubes but with the obvious difference being cylindrical instead of a cube. A stand is also included to help with holding the pieces together while you solve it and for use as a display stand. Each piece has been uploaded separately, as well as a nested file of all the puzzle pieces that will fit on a 200mm x 200mm print bed. I noticed while testing this out that the rounded faces help with identifying where pieces could possibly fit. This is an entry for the MakeAnything Challenge.