Week 11
This week, I continued working on my final prototype. There's not much time left, and I was starting to get nervous.
Things I have done this week:
1. Continue prototyping
Reflection/Thoughts on what I have done based on Rolfe et al's (2001) reflective model( What? So What? Now What?):
What?
I made the parts by laser cutting and put them together based on the laser-cut drawings I drew earlier. While putting it together, I ran into a lot of problems. The first problem was that the acrylic material I chose was too thick, which led to the fact that if it was to be assembled according to the laser-cut drawings I had initially drawn, the pinball tracks would not be easy to see due to the overall depth of the game machine, so I was forced to remove some layers that I didn't think were necessary, which just happened to lighten up the weight of the prototype a bit appropriately. But after doing so, the acrylic rods I had planned to use as supports grew, and since I was making the acrylic rods to the size they were before I removed those layers, I had to go to Fablab and cut some of the acrylic rods off.
*The photo was taken before I removed some layers, it shows the layers are too thick that make the pinball track hard to be seen
*The picture above shows the layers I removed
The second problem was the size. In my initial conception, the pinball game machine would be no more than 30cm in length, but since my laser-cut drawings was based on my model, the smallest size of pinball I could find on the market was 10mm, so when I did the laser-cut drawings, I set the size of the holes in the pinball game machine to 11mm and scaled up the entire game machine according to that. The length of the pinball machine became 40cm. The 40cm is too big for me, but due to time constraints, I was not able to re-adjust the model and draw the laser cutting drawings again, so I will have to pay extra attention to the dimensions in my next design project.
*The image shows that the size of the game machine is too big
The third problem is that putting these layers together is not easy. Although the diameter of the acrylic rods was the same as the diameter of the holes in the pinball game machine that I reserved explicitly for the acrylic rods to use as support, I encountered difficulties when trying to insert the acrylic rods. The acrylic rods could not be inserted into the holes no matter what, I attempted to use a hammer to assist me but the result was not very good, and in the process of using the hammer, I accidentally hurt my finger and lost a lot of blood. In the end, I had to sand each acrylic rod meticulously. After sanding, I could finally hammer each acrylic rod into the pinball game machine. Unfortunately, I still accidentally broke a piece of the blue acrylic layer, so I had to remove that layer.
*The picture above shows it's difficult to insert the acrylic rods
*I polished the acrylic rods
*The pictures show that how I used the hammer to insert the acrylic rods
*I accidentally broke a blue acrylic layer
*Hurt my finger when I was using the hammer
*These pictures show my finished prototype
So What?
After assembling the pinball game machine, I tried it out with the pinballs I bought. I was pleased that the pinball game machine worked well, and I had a lot of fun playing with it. Still, the one flaw was that when I first designed and modeled it, I didn't leave a receptacle on the back of the pinball game for easy removal of the pinballs that had fallen into the inside of the game machine, which resulted in me having to turn the whole thing upside down and shake it vigorously to get the pinballs that had fallen into fall out through the holes in the very top layer. This caused a massive inconvenience while playing. Firstly, it took a lot of work to get the pinballs to fall out this way, and secondly, it was easy for the pinballs to roll all over the place and be inconvenient to pick up. This shows a lack of research on the structure of the pinball game machine before I made it, and my idea needed to be more realistic and consider the problems that would occur when it was used. Moreover, the edges of the acrylic were too sharp, and in order not to hurt my fingers again, I had to wear work gloves when picking up the marble game machine. If I have a chance to make it again, I probably won't choose acrylic as the material, or even if I use it, I will have to think about how to make the edges a bit smoother.
Now What?
Given that I've got the final prototype finished, I'm going to move on to a few other things starting next week, such as continuing to write my final report, refining my miro board, drawing the storyboard needed for the video, making the final video, and so on. There's still a lot to do, and I can't afford to slack off. Of course, I also need to get the injury on my finger healed up, which reminds me that I need to protect myself and wear work gloves when making physical prototypes in the future so that accidents like this don't happen again.
Reference:
The University of Edinburgh. (2020, January 30). What? So what? Now what? The University of Edinburgh. https://www.ed.ac.uk/reflection/reflectors-toolkit/reflecting-on-experience/what-so-what-now-what
Driscoll, J. (1994) Reflective practice in practise. Senior Nurse 13 (7): 47–50.
Borton, T.(1970) Reach Touch and Teach: Student Concerns and Process Education.
Rolfe, G., Freshwater, D., Jasper, M. (2001) Critical reflection in nursing and the helping professions: a user's guide. Basingstoke: Palgrave Macmillan.
















