Posted by Wboadurg on Dec 14, 2012 |
THE IDEA
For my final project I wanted to create something elegant and beautiful that displayed what I had learned throughout the year. Knowing the project was due right before winter break, I decided I wanted to make a winter wonderland. Using 3-D printing,motors, and arduino I did just that.
My Project
HERE’S HOW
3-D Printing
Originally I wanted to make a winter wonderland in Antarctica, however as I was searching on thingiverse for things to print I kept stumbling across beautiful buildings that I wanted to print but didn’t have a reason for. That and countless reruns of Elf led me to create an ice skating rink in new york city, a modern take on a winter wonderland.
From thingiverse I downloaded numerous building, sized and exported in makerware,
and printed them. One of the problems I had while printing was remembering to generate the code according to the type of plastic I was using. To be honest I didn’t even realize we had different types of plastic until I realized a print worked with the gray filament rather than the black because of the type of plastic it was. Another issue was left side of the prints would keep lifting up. I later learned that the yellow tape on the platform needed to be changed in order to rectify the problem.
Arduinos
For my winter wonderland I wanted to make it festive by having a speaker that played a popular Christmas tune. The arduino company provided a code that directed the speaker to play certain frequencies which correlated with certain music notes. However, they only provided the frequencies for one octave. I couldn’t figure out the frequencies for other octaves because I noticed they weren’t scaled evenly between each note. This posed a problem because originally I wanted to for the arduino to play Jingle Bell rock, however Jingle Bell rocks has music notes spaning over 3 octaves so I couldn’t program it with the template provided by the arduino software. Instead, I decided to program Jingle Bells into the speaker. I found sh
eet music online for the recorder that was somewhat easy to read. Unfortunately the sheet music spaned over 2 octaves. However, having previously played the clarinet, I knew that Jingle Bells could be played over the span of one octave if you started at a lower note. I decided to use the sheet music so I could know how many beats I needed to make each note last and change the notes by starting the song on e rather than b. For the most part I changed the notes correctly but I messed up a little bit towards the end of the song.The comments in the template helped me to figure out which parts of the code I needed to tweak. When I loaded the code onto the arduino I encountered a bit of a problem making it work because I realized that the circuit wasn’t entirely correct. I realized that everything needed to be in a certain place in order to make it work correctly.
Motor
Evenly balancing the ice skating rink on top of the motor was a challenging task. I tried many different ways of doing it but non of the seemed to work. This video gave me an idea for doing it.
watch?v=XKEBZGXp7bk
I decided to superglue a platform to the motor and then glue the ice skating rink to the platform. It was a little unbalanced so I raised the ground level of the buildings to provide for support for the rink.
Decorating
In my opinion appearance is 50% of creating a piece. You can have as much technology as you want on it but if it isn’t visually appealing it won’t gain the full attention its worth. Due to the limited amount of time left after finishing programming, printing, and balancing. I decided to buy a white sheet with glitter on it from the dollar store to create the effect of snow. The same could have been easily done by stringing out cotton balls and spreading glitter on top of it.I also decided to accent the snow by making the ground level black. To make the tree I stripped copper wire and coiled it around a pen the shaped it in the form of a tree.
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