Tom i don't get it, do you want to know which pwm-ports i used on arduino?
The capacitors i have were meant for the power-transformers, another expert adviced me those but i never used it. They were for the bl-motordriver from a drone which couldn't run my bl-lawnmowermotor...But that problem is solved now. Another motordriver runs it fine.
I bought a new brushless fan, too bad i didn't know i needed the capacitors you recommend, they had loads of them.
What Paul recommends i also don't understand, i thought capacitors had a plus lead but if it's the long or short one i can't figure out (didn't try google yet).
Well i'll try the new fan first, is there a good softwareprogram for windows-ink (pen) to draw electrical scheme's? Not that i'm good in that but i would like to learn it. Windows Notes is not easy to use. Something like MS-visio from the past?