Intro to IM
Place: Inside the teaching lab that is hidden somewhere deep in the Arts Center
Time: Wednesday, October 05, 2016, 2:40pm – 5:20pm
Forword
- Checking attendance
- James takes over today as Felix has to attend to a workshop.
Power On!
Check out the Blogpost: http://intro.nyuad.im/2015/10/13/motors-and-transistors/ and the following information about Motors, transistors, relays and high current loads. As Felix can not join to todays session James will take care and will go through the following videos: https://itp.nyu.edu/physcomp/videos/videos-transistors-and-motors/
Homework
Motor Lab Assignment
I just added a Motors & Transistors blogpost to our Intro to IM Blog. — Felix Beck 2016/10/07 15:04
The intention of the assignment “Make a Motion like a Person” is that you should play with the several motors that are in your kit, and to experiment how to manipulate motor motion in uncommon ways. As this is an advanced task, you can see it as an experiment. It is not a problem if your motor motion looks creepy at the end. Feel free to attach things to your motors and to move those things around.
A common way for me would be like in the following example: You run your DC motor for a few seconds by turning it on and than abruptly stop it by turning it off again. Visualising this kind of motion in a graph could look like in the picture below:
An uncommon way would be to run a motor like in the graph of the following picture:
Here we start the motor with almost no speed, than drive it faster and faster until it reaches maximum speed. We run it on full speed for another moment before we break the motion in the inversely way. This kind of motion is non-linear and a bit more human-like. Almost like the motion when you lift your arm: slow at the beginning, moving it up it gets a bit faster, but before you reach the highest point you get slower and stop. (Other wise you would outstretch your shoulder, right?). A nice example to run motors in a non-linear way can be seen in this example: https://artcom.de/en/project/symphonie-cinetique/ (click on the video link on the page).
The two curves that you see above are obviously not very impressive but the good thing is that the internet offers some nicer examples to get inspired:
- https://de.pinterest.com/pin/434104851562052071/ (some beautiful motion diagrams)
- https://de.pinterest.com/pin/220043131771576096/ (about the influence of speed influence)
- https://de.pinterest.com/pin/481040803923604286/ (another motion-diagram)
