Great model and easily printable. The assembly on the model can be challenging especially when printed in PLA. Take your time and be patient, and don't forget to clean the joints up with a knife and sandpaper before you assemble. The cool thing is that the design holds itself together with built in tension so you can glue it up with thin CA and have a very strong model. When printing, be sure to set your loop count and extrusion width carefully to ensure that you get good crowing. This is especially critical on the file id_nuclear_bomb_bot.STL as it will crack apart when you go to put the model together if it's not printed solid in PLA.