DT Process Journal Feb 11th 2011

- Preparing and cutting the last third photoframe Today I worked on creating the last third photoframe as I completed cutting the backboard. I first wore an apron to protect my body from dust and put hard shoes to keep my feet safe from falling sharp tools. I should have preparation for cutting the photoframe. It was necessary to take the blade of coping saw out and put the blade in a hole of photoframe. This way allowed me to cut the inside part of the photoframe to shape the perfect water drop. Therefore, I first pushed the edge of coping saw with my shoulder’s power (See Fig 1). One side of the blade them came out (See Fig 2) and I put the blade in the hole of the photoframe (See Fig 3). I pushed the edge of coping saw with my shoulder’s power again and put the blade into the coping saw again so coping saw could work. After accomplishing preparation, I started to cut the inner waterdrop shape of the photoframe (See Fig 4).

Figure 1: I was pushing the edge of coping saw with shoulder’s power.

Figure 2: As I pushed down, the blade was taken out from the coping saw.

Figure 3: I was putting the blade into the hole of photoframe to cut the inside part of it.

Figure 4: I was sticking the photoframe to the bench hook and cutting it.

- Trimming the photoframe After cutting the inner part of the photoframe, I began trimming the photoframe with pedestal drill. I first wore goggles because a large amount of dust came out from the machine. However, I didn’t use the sharp drill which we required to drill the holes. I used a round drum sander to make the surface smooth. I adjusted the height of support to trim wider space. As the drum sander was spinning so fast, I pushed through the wood so the rough surface could be peeled (See Fig 5). When too much dust was sticking to the drum sander I should rub it with rubber stick to remove the dust and worked with it more effectively.

Figure 3: I was using pedestal drill to trim the photoframe. The red round thing is called ‘Drum Sander’ which peeled the rough surface of the wood.

- AOI / Learner Profile Today’s process was related to Approaches to Learning. I learned some safety rules dealt with jigsaw: First, I needed to push it down while it was working. Second, I should wait until the blade finally stopped moving when I turn off the machine. With the regards of Learner Profile, I was a communicator during the workshop. Although I used a jigsaw before in grade 9, I forgot how to work with it. Even I was scared to use it because I could felt the vibration jigsaw made while it working. I was able to manage this difficulty by asking for teacher’s help. Teacher showed me a demonstration of using a jigsaw and also he informed me some safety rules that I should obey when working with a jigsaw

- Emotion / Changes to Plan

Today’s process was satisfying for me. As I predicted in the flow chart, this trimming process took long time. However, it took much shorter to make the edge of photoframe smooth. I could move to next process quicker. In addition, I was a bit scared to use gig saw because of its great vibration. Therefore, today’s work was successful.