PRAC 3

HELLO👋WELCOME BACK TO OUR BLOG!! So this week, since the restrictions had been loosened, we got to do our practical 3 at the SP campus in our FAB LAB.✌

PRACTICAL 3🏫

This practical is to learn the fundamental techniques and tools that are needed to start building carboard structures and mechanisms which are useful when prototyping😲. One of the best ways to gain insights in a chemical product design is to carry out some form of prototyping👷. Prototyping involves producing an early🕕, inexpensive💸, and scaled down version of the product so that any problems with the current design can be seen💬. Prototyping offers designers the opportunity to bring their ideas to life, test the practicability of the current design, and to potentially investigate how a sample of users think💭 and feel about a product🙋. We also took many photos📸 so that it will be easier to visualize so scroll down!!!👇👇

PRE-PRAC PREP📃

Before our official lab session, we had to do a brief literature search about a certain website given to us. The link will be below:

https://www.gwp.co.uk/guides/corrugated-board-grades-explained/

Literature search on Corrugated Fibreboard :

To make a standard sheet of cardboard, a sheet of corrugated paper is placed between the inner and outer liners. There are 2 main types of liners used which are kraft and test liners. Kraft is stronger than test due to its virgin fibres so it is used for the outer liner while test liners are made from recycled materials hence it is not as strong and is used for the inner liner. The weight is measured in Grams per Meter Square(GMS). For packaging heavier items, more rigidity and strength are needed. Hence more walls of cardboard will be needed. They are called double-wall or tri-wall. The flute type, corrugated section, can affect the performance by changing height and size of the flutes. There are a few different types of flutes such as E,C,B,BC and EB flutes which have different thickness to support different products. It is possible to achieve similar performance with different board grades.

Practical session👻

Some precautions we took❗:

1. Wear cut resistant gloves when using a pen knife.

2. Always wear nitrile gloves throughout the practical.

3. Careful with the hot glue

What are we supposed to do?❓👀

First part: We were supposed to use cardboard to make a vision board. We found out about the different types of joinery used in cardboards to make different types of ways to make it stand. we were also supposed to choose a preferred joinery and reason on why we chose that and present it in front of our class. Our vision board had to include 8 different types of cardboard joineries.

Materials we used for this activity in school📏🗡:

1. penknife x2
2. scissors x1
3. corrugated cardboard x6
4. hot glue x2
5. rubber bands x10
6. cutting board x4
7. set of colored markers x1
8. rulers x4
9. super glue x1
10. nitrile gloves x4
11. cut resistant gloves x4

RESULTS🙈

We too some pictures📸 during this activity so enjoy😬😬

Figure 1: Us and our board 👭👭

Figure 2 : Finalized results💨

Figure 3: Clearer point of view of our drawings👀

Figure 4: Jolyn got a pair of glasses⛔

Figure 5: Process of putting HOT GLUE on the cardboard 😲

Figure 6: placing the final heart, made by cuihan, on our bridge, made by jolyn.👏

Figure 7: cutting of cardboard ✀

video 1: presentation on our preferred joinery

Video took by Madelaine.🎥

Holding our master piece by Cuihan.✊

Presenter by Jolyn.💁

We learnt about the different joineries such as tabs, slots, score, bend, flange and gusset. Hence our vision board included all the joineries we learnt. All of the joineries in our board was designed with markers by Madelaine to spice things up in our board😍💃!! 

Slots: It is to cut a small rectangle near one side of the cut out square piece. Hence using the cut square piece, slot it into another cut out piece of any shape. This is seen in our board in figure 2.

Tabs: At the end of the cut out piece , just cut a little line from the bottom using a scissors, so that when bent out it will b squares. Hence easier to paste on board. This is seen in our board in figure 2.

Score and Bends: Cut out a rectangle piece out. Using a penknife follow the line on the cardboard and make sure that it doesn't cut fully. it should be cut so that it can be easier to bend. This is seen in our board in figure 2.

Circle Flange: Cut a rectangle piece outs. follow the lines on the cardboard and bend it accordingly. Then cut slightly with scissors so that it can stand when pasted on the board. Hence make a circle and glue the ends together. This is seen in our board in figure 2.

Gusset: Cut out 3 triangles and 1 rectangle. the 3 triangles will be used to be a stand for the rectangle. Hence paste the 3 triangles on the back side of the rectangle. This is seen in our board in figure 2.

Second part: This was done in the comfort of our homes due to the lack of time in school. we had to make a unicorn with the carboard which was provided by the instructors. We also had to include a mechanism in which the wings of the unicorn would flap without us moving the wings with our hands.

MAINLY we used the joinery methods of tabs and slots for this activity.

scroll down to take a look at our final product and chosen mechanism!!👀👇

Figure 8: materials for making our unicorn

Figure 9: Final product

Figure 10: side view of unicorn

Figure 11: used rubber band for the flapping of wings mechanism

video 2: flapping of wings with mechanism :))

Figure 12: working mechanism of the wings

(P.s sorry for the bad drawing😅)

Working mechanism of the wings

we made a a knot at the middle of the rubber band so that there will be 2 parts. 1 part will be at the nose of the unicorn. While the other part will be placed at the inside of the wings, where the below part of the 2 wings will collide. One part is at the nose so that the rubber band can create the flapping effect when pushed with force. Hence by using your finger and force, the wings will move and flap simultaneously.