Impeller

Hey My name is Jose Pinto Im fron Venezuela! This model.. its not my model i found it in a youtube video and.. i think it would be foony make it so i make it but i do some modification and one of this models is adaptative if you change the diameter flap this model grow or reduce whit it this is my firts post so maybe i make something more Awesome, let me know on feedback some idea see you then