Since i wanted to give the noisy fans of my printer a second chance, i decided to create a small handy vac for my little son.
So now the fan does, what it was created for... NOISE ;-)
Of course, the handy vac, doesn't have a vacuum to clean the floor or sth. else... ;-)
What you need:
1x Mainboard fan or any other fan in 40x40x10 for 12V
2x 9v battery
2x 9v battery plug (wire them parallel to each other)
1x switch (special function: the handy vac is completely round, so if it will lay down, it switches automaticly off)
5x Led 5mm (3 in row, 2 parallel to 2 in the row)
4x countersunk head screws 4x20
2 x head screws 3x5
Pictures show first try. I changed some details of the handle...