motor + motion= energy ????
Roger and I continue our idea on the bathroom light project. This week we focus on building a device that could take the "work" from opening the bathroom door to light up a LED. We have a motor and wonder what kind of the mechanical structure would work for this particular motion.
First meeting:
we wanna take the principle of retractable measuring tape to rewind back the twin after every use.
so we opened one of Roger's Tape measures. here is his measuring tape. we studied how the spring work inside of the plastic case. However, after we put everything back into the place, the tap measure couldn't retracte back to the case.
*here is the picture of it ..
we thought the one we open up is too cheap. that's why it would't work after we open it up. So we try to open another one. the second one is quiet nice. it got a much longer spring inside.
* but after we took it apart, it explored !!!!!!!!!!!
Second meeting:
*then we thought about Anglea and Megon's salad spinner. it got a auto retractable format. Roger and Yao got the spinner and we are all excited about it. we made two holes to grap the motor from spinner. somehow we broke the structure of the spinner. the spring doesn't retract back to the case.
:(
Third meeting:
we try to build a prototype and study the motion closely and found out the motor we use can only go one direction, which will be hard for us to rewind back to the motor.
