Coreless Motor hand fan

thingiverse

Here's a fan I crafted using 716 coreless motors - I realized it would be ideal for summer as the amount of airflow is substantial and it's quite affordable, plus it's compact. I powered it with three AA(LR6) batteries connected in parallel, but when connected in series, the power remains the same, however, the batteries heat up instantly. I used a solder wick to connect the batteries (see image above).