What a stressful evening. I figured I wanted to do a pretty complex valve system just to learn a bit, using solenoids valves and microcontrollers to have everything computarized. To save a few bucks I thought making my own solenoids using magnet wire from my motor junkbox. Oh boy... over half an hour trying to open that annoying dc motor, I used everything I had in available, from a drill to screwdrivers. I got really mad I just couldn't open it, grabbed a hammer and start hammering it, after a few hits in the right spot the cap flew away, and it exposed the coiled wire and the magnets, that were shattered after all those hits. It's late now and cutting the motor case to remove the wire might take a while, so that's for tomorrow. So what you guys do when its needed to scavenge parts from old stuff, sometimes tools are useless. Also if someone have ideas for a simple solenoid I'd appreciate it. I thought of using the magnet wire in a straw or maybe a pen case, with a nail inside.