DIGITAL DESIGN + FABRICATION SM1, 2016 M1 JOURNAL - PLASTIC STOOL PHAM Hoang Phuong Trinh 784173 Josh - Tutorial 7
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Measured Drawings and Analysis PLASTIC STOOL
TOP VIEW
BOTTOM VIEW PLAN (SCALE 1:2)
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Measured Drawings and Analysis PLASTIC STOOL
The use of greater length of plastic on this panel help increase strength and rigidity of the stool. Also, these plastic components are fairly hollow, meaning that it helps saving materials but still ensures the strength of the stool.
ELEVATION AND SECTION A (SCALE 1:2) ELEVATION AND SECTION B (SCALE 1:2) I noticed that the pin joint in Detail A1 acts as one of the main functional components of the stool. The convex surface of the right panel fits perfectly into the concave surface on the left panel. The semicircular plastic joints allow rotational movements and increase flexibility of the stool.
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Measured Drawings and Analysis PLASTIC STOOL Panel 3
Panel 1 Panel 2
TRANSFORMATION The folding transformation of the stool is primarily based on both horizontal and rotational movements of the 8 panels. When either vertical force (Fv) or horizontal force (Fh) is applied on the stool, panels number 1 start to move horizontally in opposite directions. This enables the pin joints between panels 1 and panels 2 and panels 3. Except for panels 1, all remaining panels perform rotational movements at the same time and gradually transform into an open stool. Also, I noticed that on panels 2, there are two plastic shapes that support and enforce the surface above, transfering load from panels 3 down to earth.
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DRAWING PROCESS
To make the measured drawings of the stool in scale 1:1, first I placed the actual object on paper and trace the main outline (Picture 1). Then I used scale rule to measure the other details. I applied this methods to all of my drawings including plan, elevation, and sections. As the shape of the stool are fairly straightforward, I find it easy to measure and draw. However, there are number of details that need careful measurement and some curves that are difficult to measure. It turns out to be more time-consuming and challenging than I expected.
Digital Model
FRONT VIEW
PERSPECTIVE VIEW 6
RIGHT VIEW
Digital Model
TOP VIEW
BOTTOM VIEW
3D MODELLING DIFFICULTIES Throughout the 3D modelling process, I encountered som problems, for example, curves are not on the same planar, invisible overlaying curves. By watching online tutorials and extra research, I’ve learnt some new tools such as Set Point, Bolean Union, etc. and used them to solve the problem
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3D MODEL PROCESS
1. I drew basic outline of the red panel using InterpCrv and Polyline command. Some unnecessary curves were cut by using Trim command
4. I drew the pin joints seperately by using InterpCrv and Polyline command
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2. I used Mirror command to draw the remaining curves of the red panel. All curves were joined into 2 closed curves. Then, I used Planar Curves command to create a surface.
5. I used Revolve command to create 3D surface of the pin joints
3. I created the thickness of the surface by using Extruded Curves command
6. Pin joints are then attached to the red panel by using Bolean Union command. I used Gumball to rotate the joints to fit into panel
7. I copied the pin joints and pasted on all remaining details
10. Red and Yellow panels are placed in positions
8. Using similar techniques, I created the remaining 7 panels.
11. Blue panels were finally placed on top of the other panels.
9. Mirror command is used to generate other similar panels
12. Final 3D product was rendered by using Render tool
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Sketch Model While analyzing the object (stool), I was greatly interested in the pin joints and the folding movement between panels. As the results, I created a new stucture that has similar folding functions, yet and less density, less volume, more flexibility and more space,. Besides, the shape of my model is inspired from the butterflies’ wings. What interests me about butterflies’ wings is that they can create a 3-dimentional effects despite their 2D shape.
FRONT VIEW
SIDE VIEW
From different view ports ( Front, Side, Top), it is shown that by applying folding movements and adding folding edges, the sketch model has high flexibilty and that allows slight distortion and alteration according to demand. It can also be combined with similar shape to create wide range of new structure.
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TOP VIEW PROTOTYPE
Sketch Model
I combined 4 similar sketch models to create new structure
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Model Making Process
This is the very first sketch of what the model should look likes
I realized it was difficult to create a pin joint by using paper. So I tried different techniques and there were many failed shaped.
The model was developed through three stages: 1. creating shape 2. creating solid surface 3. adjusting surface and adding folding edges MATERIAL USED: 1. PAPER 2. GLUE After series of failure, I finally manage to create a shape that is similar to the original sketch
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However, I noticed that the structure looks quite solid and densed. So I decide to add some space on the structure and increase the length.
Another problem was that the photocopy paper I used was too thin, and the structure tends to bend. So I changed to thicker paper and it worked well afterwards.
Model Making Process
MODEL MAKING DIFFICULTIES One challenge I encountered was trying to make a model from my sketch. Change and adjustments were considered when bringing a sketch to physical object. The process of brainstorming the shape of sketch model from the original object was also challenging because the new model has to have one attribute of the original object, but does not purely copy the shape.
A transformation from basic curves, planars (2D) and 3- dimentional model
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SLEEPING POD
Sleeping pod is usually defined as a big, comfortable object that allows people to take short nap. However, I think the size of the traditional sleeping pod is unecessarily huge which might take up a lot of spaces. Therefore I’m thinking of a portable sleeping pod that we can carry in our bag and use it any time we want ( like a accessories). Looking at the traditional sleeping pod, I noticed that as long as we can provide a “soft” and comfortable support to our neck and back (making both of them rest in a linear line), we can possible have a good sleep. An ideal sleeping pod might be a small, portable but can extend along our back to create a comfortable surface so that we can lean on. Also, a sleeping pod that can be attached to existing chair or table can also be considered.
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Sketch Design #1 Multi-functional Scarfs - Flexible - Protective - Portable Pillow
What is your idea? [Maximum 5 key words]
Highly flexible structure that can turn from3d to 2D chain when not used or when shaking head
SIDE VIEW
BACK VIEW How does this respond to your personal space?
Regarding personal space, humans’ neck and back are highly sensitive and vulnerable. This design aims to create a protective shield around necks and along the back to avoid any unexpected attack from behind. It can also act as a portable pillow.
FRONT VIEW
Sketch Design #2 Protective- Flexible- Foldable - Barrier
What is your idea? [Maximum 5 key words]
Structure acts as portable pillow to place one’s head on while sleeping
protect one’s chest from the edge of the table
BACK VIEW How does this respond to your personal space? This structure protects the elbow and the heart. It can be folded in normal situation. When somebody approaches and affects our personal space. The frame will open up and acts as a shield.
FRONT VIEW
Sketch Design #3 Noise-prevent, Balance, Flexible, Portable
What is your idea? [Maximum 5 key words] The structure covers the ears to limit some unwanted noise.
RIGHT VIEW How does this respond to your personal space? This design aims to prevent surrounding factors from interfering with one’s sleep. When we want to relax, the flexible frame will open and cover one of our eyes to prevent strong light from surrounding.
FRONT VIEW
Appendix
EVIDENCE OF RHINO PRACTICE
Extruded cirular surface
Extruded surface
Revolve Surface
Sweep1 Rail
Sweep 2 Rail Extruded Polygon surface
Reference http://www.industrytap.com/wp-content/ uploads/2013/09/1280x720xSleep-Pod.png.pagespeed.ic.ug_l1cz8K0. jpg https://images.sciencedaily.com/2013/08/130828103448_1_900x600. jpg
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