Showing posts with label ATEC 6389 Fall 2016. Show all posts
Showing posts with label ATEC 6389 Fall 2016. Show all posts

Sunday, December 4, 2016

Ivy Donnette: Pepakura Model


I created a new model that would make more sense in a large size for this project. During my undergrad I created a 2" copper hollow-form dice with screws as the pips which was the starting place for this dice. I chose to build off the idea of a dice because of their inherent tactile quality and I wanted to play on that by enlarging it exponentially. 



The new model gave me a bit of a hard time when I uploaded it to Papakura due to the way I constructed the model. After several frustrating tries to make the model unfold in a way that made sense, I decided to separate out each mesh instead of trying to unfold the object as a whole. This change also made construction pretty simple.    



Because a dice is something people want to pick up and roll, I wanted to play on that by adding a rough texture to the dice’s exterior. I thought about using sand paper but felt that there was a better option. I decided on coarse sand that would then be painted. Amanda suggested mixing sand with glue as a way to adhere sand to the cardboard but I was concerned that the glue would prevent the texture of the sand from being as rough as I want it so I decided to brush glue onto the box then sprinkle the coarse sand onto the glue.





The sand also allowed the tape and seams fade away. I didn't want it to look like separate objects taped together. After the dice was covered in the sand, I spray painted it gold. The gold paint creates a feeling of importance and value even though it’s just cardboard. The phrase I thought of as I covered the dice in gold was “false decadence”.    


Paint and sand has chipped off as I transported it to campus and as I struggled to wrangle the dice out of my car. I wanted the dice to be perfectly covered but realized that the mangled and chipped edges added to the reality of the false decadence.    














Ivy Donnette: Serial Sliced Model


I decided that I didn’t want to paint my serial sliced deck of cards to look like a literal deck of cards. That would have been boring. Actually, I didn’t want to paint it at all. I wanted to cover my model in something that would add interest and texture. Fortunately, my first idea failed before I even put it on my model. Because it failed, I decided to give painting a try. The method of painting I chose is a form of printmaking where you paint on a substrate then press the substrate onto the object you want the print to be on. I haphazardly drizzled and blobbed paint onto a tin foil covered baking sheet then put marbles into the paint and randomly rolled the marbles around. The marbles mixed and swirled the paint in a completely random way.



Next, I lifted the foil off the baking sheet and pressed it onto one side of my model.









Monday, October 10, 2016

A.K. Marder - Molding/Casting_Midterm

With this not being my first rodeo in molding and casting, I took this assignment as an opportunity to explore the possibilities for a future installation as part of a current series I am working on.  The series is called "Give or Take" and is essentially my reflection on the homeless in Texas.  The work is open to interpretation but the purpose of the installation is to make the viewers question whether the hands represent hope or greed.  The orientation of the hands is a key factor as well as how they are organized.  For more information, please refer to my personal blog: akmarder.blogspot.com (permission required)

The army

Exploring with materials, tints, and sizes I was able to determine if this was a path I wanted to included in the installation I am working on.

The beginning:  There are three different sizes of hands I am working with but for this course of exploration I chose to only use the 3in and 4in hands.

The original was a 3D scan of a casting of my hand.  Using the 3D scan model, I dropped it to a low poly model.

As a native Rhino user, this is how I produced the rest of my work from the 3D prints to any other modifications.

3D Prints:



Molding Process:
1. Detail Coat

2. To conserve material, re-purposing Rebound 25 and 40, I cut up old molds to fill in the majority of negative space for my mold. Leaving a spot from the bottom up unfilled with blocks (explained in step 3).  In retrospect I wish I used Moldstar 30 because it is more rigid.

3. The long time consuming pour.  The chunks of rebound create a lot of air so "burping" the mold is necessary by pouring straight to the bottom (where I did not fill with blocks) and kept the pour a long thin stream and poured super slow to help eliminate bubbles.  This also allows the material to flow in between the blocks and push the air out.

***Labeling where to cut is ideal prior to pouring the mold***

4. Align mold and cast.  I used Smooth-Cast 300Q which has an extremely quick pot life allowing me to produce these at a rapid rate.



Backplate:  The primary goal was for mounting with consideration of the LED's embedded in some of the casts.  I designed two different plates that can accommodate castings with and without LED's.  The back of each backplate have a keyhole notch so no additional hardware is necessary for display.

  







The Castings: Instead of using physical paint, I used "So Strong" urethane tints to "paint" my castings.
First Attempt: Mixed tint into part B
Next Attempt: Swirled tint into mixture of part A&B 
Embedded LED
Embedded LED



Illuminated embedded LED, the LED did not disperse the light like I had intended.

Installation:  Each casting has been sanded and leveled while the MDF plaques have been painted or stained.  The final pieces are adhered to their plaques, the LED's are soldered to wires that lead to a 3V power source mounted to the back.