Product Sketches ✏ & Design Specifications 📐
What are Product Sketches? ✏ 🤔
1. Sketching or drawing is a key technique for creative expression in product design.
2. It is considered the principal approach through which product designers externalize a product’s design concepts.
3. Most importantly, sketches or drawings
enhance understanding and provide
visual clues for possible further refinements
and revisions of the product.
Mini activity 1 📝
Sketching
We were all given 5 sheets of A4 blank paper and were tasked to practice sketching as instructed below.
Warm-Up 1:
Sketching straight line
Draw 2 points around 15 cm apart.
Place the pen on the first point,
Focus on the second point and draw a line to join the second point in one single stroke. Do not move your wrist. Repeat this 5 times. Some of our work is shown below:
done by Trisyia
done by Jessica
done by Kevan
done by Jun Ying
Task 2:
Sketching curves
Draw 3 points around 10 cm apart from each other. Place the pen on
the first point, focus on the second point and the third point, draw a line
to join the 3 points in one single
stroke. Repeat this 5 times. Some of our work is shown below:
done by Trisyia
done by Jessica
done by Kevan
done by Jun Ying
Warm-Up 3:
Sketching Circles
Draw 2 parallel horizontal lines about 3 cm apart. In a single stroke
try to draw circles touching the 2
horizontal lines. Repeat this 5
times. Some of our work is shown below:
done by Trisyia
done by Jessica
done by Kevan
done by Jun Ying
Warm-Up 4:
Sketching Ellipses
Draw 3 parallel vertical lines about
3 cm apart. In a single stroke try to draw ellipses touching all 3 vertical lines. Repeat this 5 times. Some of our work is shown below:
done by Trisyia
done by Jessica
done by Kevan
done by Jun Ying
A one-point perspective drawing means that the drawing has a single vanishing point, usually directly opposite the viewer's eye and usually on the horizon line. All lines parallel with the viewer's line of sight
recede to the horizon towards this vanishing point.
Mini activity 2 📝
We were each tasked to produce a sketch of the milk carton and book below.
Here are some of our group's sketches:
For milk carton🥛
done by Trisyia
done by Jessica
done by Kevan
done by Jun Ying
For book📘
done by Trisyia
done by Jessica
done by Kevan
done by Jun Ying
Activity 1 📝
Collectively, we were tasked to sketch your chemical
product in 1-point or 2-point perspective.
Your sketch should have critical
dimensioning for help understanding.
Our product: Self-cooling waterbottle
done by Trisyia
done by Jessica
done by Kevan
done by Jun Ying
What are Design specifications? 📐🤔
A specification is a set of documented requirements to be satisfied by a
material, design, product, or service. It is a common preliminary part of any engineering design and product development process.
Types of specifications relevant to product design:
- Material specification
Physical (dimension, weight, voltage required etc)
-Functional/Performance Specifications
e.g. Acceleration from 0 to 100 km/h in 8 sec, 50m Water resistance
- Standard Specification
e.g. API 650 for weld tank for oil storage; waterproof IP67
- Test Standard
e.g. ASTM E18-20 Standard Test Methods for Rockwell Hardness of Metallic
Materials
For us, the focus will be
only on
Material &
Functional/Performance Specifications.
Example of design specification table:
| Product: | Wearable Insulin Pump |
Aspect | Specification Metric (or Quality) | Quantitative Value |
Physical attributes of the product e.g. dimensions, weight, etc. | Physical | Easy to carry | - |
Compact | 12 cm x 7 cm x 3 cm |
Lightweight | ≤ 0.2 kg |
Battery Operated | 3 x AA size rechargeable battery (4.5V) |
Relates to the functional performance of the product | Functional | Substantial operation time | 72 hours on batteries |
Temperature resistant | -10 to 55 °C |
Water-resistant | IP67 |
Sturdy | Able to withstand impact force of ≤ 313 N |
Easy to use | - |
Minimal setup time | ≤ 20 s |
Do not affect the functional performance | Others | Inexpensive | ≤ $400 |
Multiple system languages | 5 |
Activity 2
We were then tasked to create a design specifications table for your
group’s chemical product
Use the Design specifications table template
available on the next slide but make the
necessary customization to suit your
chemical product.
Product: Self-cooling water bottle |
Aspect | Specification Metric (or Quality) | Quantitative Value |
Physical | Lightweight | ≤ 0.5 kg |
Rechargeable operated | 2x AA size rechargeable battery (4.5 V) |
Compact | 7.24 cm x 7.25 cm x 26.16 cm |
Small USB | USB-C |
Functional | Sturdy | Able to withstand impact force of >10000mPa |
Substantial operation time | 72 hours on batteries |
Water resistant | Will not corrode under contact with water. |
Time needed to cool the drinks | 10 minutes |
Charging time | 1 hour |
Temperature resistance | -2°C to 90°C |
Others | Inexpensive | $30-$50 |
Easy to use | - |
Reflection 📜
Trisyia 🐌
This week we learned how to sketch which is something I thought I'd never do after I graduated secondary school. We learned how to sketch from different point of views and techniques that helped us learn how to amplify our sketching skills. Then we were told to research on the specifications of our design. This was nothing too new as it is similar to what we have learned in one of our previous module in Year 1. It was a very surprising yet interesting lesson.
Jun Ying 🚲
This week, I had to dig up a skill I thought I did not need anymore from the past: Art. I was never very good at Art, simply because I did not like it, and did not bother to improve as well. I would often be content with just a passing grade in Art in secondary school. It was also why I stayed away from any art courses. Hence, when I heard I was going to be sketching, it was very shocking to me. However, the lesson today did not seem as mundane as the ones in secondary school. I enjoyed the lesson today, as I had to implement elements of chemical engineering, such as critical dimensioning, into my sketches to make them realistic. It shed a new light on Art for me, and I might give Art another shot in the future, such as by doodling during the holidays. Next, we had to make design specifications for our water bottle. I found this quite easy to do, and with the help of my groupmates, we completed the activity without taking too much time.
John 👽
Sadly for this week, I was not in school due to me not feeling well as I had my second dose of vaccination the day before. However, looking at the blog and the pictures that my team made, it seemed like a very fun lesson with lots of drawing to help with the sketches of our product. I had wished that I could have attended the lesson and if given an opportunity I would like to attend this lesson.
Jessica 🐰
Today's lesson was really fun and enjoyable. It's been a long time since I've had a chance to draw due to busy schoolwork. At first, Dr. Noel provided a few pieces of paper for us to practice sketching. It's easier at first, but then it gets harder. However, I really enjoy the time when I can draw something with my friend. Everyone has their own ideas in drawing different things for milk carton, books and our product which is self-cooling waterbottle. Besides, we also make some design specification for our product. As we shared our thoughts, we showed our creativity. I am very grateful for today's lesson, which gives me a chance to draw.
Kevan 🐺
Today lesson, I understood how to draw and sketch. I understood different ways to sketch using 2d and 3d. It was interesting as i was able to fully interpret how people used different ways of sketching to sketch different designs. I had a lot of difficulty sketching specially drawing a 2d and a 3d model for the water bottle, but overall, it was a fun experience.
Comments
Post a Comment