Week 12: Motion, Part 2
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Week #11 Assignment
This week i tried create a paper armadillo using flexinol, the main idea is that when heat is applied, the armadillo will contract into his shell.
SMA- week 11
The door is supposed to open and close on it’s own. I thought it was ironic to have a Do Not Enter sign on it. I tested out with Arduino first, but it wasn’t working for me. Then I tried with the 9v battery, but I didn’t have a 12-13 resistor. I tried using a 220ohm, but it still wasn’t working and I was afraid of burning it. -Estee
I started with building the circuit first to make sure it was worked and then created a story from there. I decided to use paper as the material for the nitinol. It was extremely difficult soldering the crimp bead to the copper tape because the nitinol would contract as it was heated by the solder and didn’t stay in place while I was soldering. Finally I got it to work, I could use a button to make the current go through the wire to open the little gap. I decided to draw a character with one of their teeth being removed (except it gets removed from the bottom, but should be from the top. Also I didn’t have a 12-13 resistor so I ended up trying a 10 resistor and a 47 resistor. The 47 didn’t allow for the nitinol to contract. The 10 resistor allowed the nitinol to contract, but it almost burned.
Motion project – Raw Steak by Dylan
This little project was inspired by old cartoon animations of a steak, so raw, that it’s still “living” enough to run away from the individual that is trying to cook it. I cut slits into the cardboard to allow it to bend more easily in the way intended. The move meant reminded me of the cartoon steak almost instantly, but also could represent things like a rolly polly bug.
I wanted to hook this up to a potentiometer through Arduino but I was having difficulty trying to connect the circuit up correctly…
Week 11: SMA
For this week’s homework, I experimented with SMA to create an unhappy cat taking a shower.
I began by drawing the cutouts of the shower and the cat and made a box to facilitate the up and down movement. For the handmade sensor I made a rotating sensor with some paper, copper tape and screw nails. The sensor did not work out as well in the code, so I ended up not using it to activate the wire.
Then I started experimenting with making the wire move. I had a lot of difficulties controlling with Arduino because my battery wasn’t working well. I tried using analogWrite up to 50000 in value to make it move.
After switching batteries it was operating better.
SMA Experiment
I used SMA to create a linear motion between 2 cut-out paper on a piece of cardboard (These illustrations aren’t mine! They are from freepik).
I had trouble increasing the wire’s movement but then I found out my battery was dying. With a new battery, the different levels of movement when I changed the number in analogWrite were pretty drastic. The video below features 3 different analogwrite:
Process:
Cut out the boy and the girl.
Cut out an area of the cardboard so that the figures can move toward each other. I later decided to lock the boy in one place so that only the girl moves.
And here’s the (not so pretty) back!
Week 12: Flexinol
At first, I wanted to create an art piece to comment about animal cruelty so when I switch the button on the monkey will curl up to make it look like it’s jumping and swinging around. However, I made a big mistake to glue the back and the front of the monkey together with a glue gun and so when it meets heat, the glue gun melt and it’s a complete fail prototype.
Therefore, I thought of a new project and I wanted to be playful with this assignment so I created a human exercise machine. I put the flexinol on my cut-out illustration of a woman in a sit-up position. I sewed the flexinol to make a curve around the woman’s body and solder it with the copper tape. (It was really challenging to solder it for reals) I connected my switch so when I rang the bell the woman will sit up. I also used my handmade connectors to connect the circuit together.
However, I think I used the wrong resistor and it won’t successful turn on. But I tested the woman with hot air and she bends the way I wanted to. I enjoyed using flexinol a lot and I think I can make use of it in so many different ways.
Week 10 Assignment
In folklore, there is a rabbit that lives on the Moon. It pounds medicine and accompanies the Moon Goddess.
For the assignment of this week, I used thermochromic pigment to draw Moon on a piece of fabric and sewed a rabbit on another one. When the rabbit layer is charged, its figure will show on the Moon. One problem with my project is that it’s hard to tell the figure because of the pigment-to-base ratio and the color itself.
Thermochromic- Week 10
I wanted to show that there is pollution in the ocean. So I mixed blue ink with yellow thermo powder. Then I embroidered “OIL”, which is supposed to show when heated. With oil spills and toxic chemicals being thrown into the ocean daily, it’s no wonder our oceans are turning into polluted seas.
