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Design Journal - Day 11

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January 12th, 2019  Day 11 Journal  By: Lee Joshua Millora This is the final journal and today was the day where we decided to add two shelves on one side of the box, so that the player can store their balls and the cubes they accumulate. We did the building of the two shelves at Angel dad's place. We made a design plan, which is shown down below.  We had extra wood from rebuilding the four walls of the base, so we used that. The dimensions of the shelves are 12 inches in length, 4 inches in height, and 3 inches in width. We used Angel dad's table saw to cut the 8 wood pieces needed to make the two shelves. We also used Angel dad's nail gun to attach the shelves together and to attach the shelves on one side of the base. The toy is finally fully built and so this is why the journal is a milestone.  Looking at the original design, not much has been changed or added. The wooden dowel in the original plan has been replaced with the metal dowel. The wo...

Design Journal - Day 10

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December 8th, 2018 Day 10 Journal By: Lee Joshua Millora We went to Angel dad's house to check the situation of the base. However, we realized that the wood was so grainy. so we went to Rona to buy wood. The wood we bought spruce select wood because it is sturdy, so when we cut holes, it does not have chipping around the hole. We bought 3 pieces of This will make sure its a smooth surface so that the friction between the metal dowel and the hole will be reduced, and much easier to rotate. We first cut out the four walls of the base, following the same dimensions of the original walls. Instead of making the hole with a drill and a rectangular saw, we traced the hole design onto the two smaller walls and first used a dewalt wood drill bit and then used a black & decker drill glass/tile drilling set for sanding and smoothing the hole. These tools were Angel dad's tool, so we did not had to buy them. Here are pictures of the two types of drill bits. Before we had...

Design Journal - Day 9

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December 6th, 2018 Day 9 Journal By: Simon Zhang We noticed a problem while building the pinball launcher, the wood used to build the base of launcher was too grainy that a chip was caused when we were making a hole. According to Newton's law if the contact surface between two objects is more grainy, more friction would be caused; less friction would be reduced if the contact surface is smooth. As a result, we could not move the pinball launcher side by side correctly because the friction caused by the chip was greater than the force produced by us. Here is a picture of a cube made from the same type of wood, as one can see, this type of wood causes a lot of chipping. We made cubes also today at Lee J's place, but because of the chipping as show in the picture below, we figured we had to remake them. To solve the problem we only had one solution: To get new smooth wood from a hardware store in order to reproduce the four sides of the base. This a milestone because a...

Design Journal - Day 8

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December 4th, 2018 Day 8 Journal  By: Angel G  The first hole was made on Nov 30th during my first period spare. I went down to the wood shop so that Will could help me. Before Will made the hole, an outline of the hole was made on one of the smaller wood walls. Measurements were taken so that the hole would at the right place for the metal dowel, and the hole was drawn according to the height of the cube. We made sure it was in correct place by checking to see if the top of cube is lined up with the bottom part of the hole. A diagram of this can be shown below: A reciprocating saw (picture of one down below) from the wood shop was used to cut out a rectangular shape in the outline. The wood left was removed using a drill from the wood shop and by making two holes on both sides of the outline. A diagram of this is shown above. This a milestone for us because it marks a big step in the completion of our toy project. This is because in the outline, we w...

Design Journal - Day 7

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    November 27th, 2018 Day 7 Journal  By: Simon Zhang  Today, me and my partners went down to the wood shop to ask Will if he could make a hole for us so the launcher can be rotated. We suggested to make one slit per side, but Will told us that would not be a good idea because there is not wall to support the launcher. Today, we are planning how to do the two holes that will rotate the metal dowel in the launcher in the school's wood shop. Before doing the test for the launcher, we used scrap wood and made lots of holes by using the drill and shaped these holes using sandpaper. Doing this test on making the holes is a milestone because in our original design we wanted to rotate the launcher, otherwise, the ball will travel in only one direction. Here is a diagram of the original design: We figured out that to make the hole accurately, we need to make a wide hole by drilling two holes and a rectangle between those holes. Here is a diagram. The ...

Design Journal - Day 6

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December 2nd, 2018 Day 6 Journal By: Simon Zhang As stated in the previous journal, we wanted to reduce the friction between the metal launcher and the wooden base, so we came up with the solution to cover the entire base with vinyl. Angel bought some vinyl for our toy project from Dollarama for $3. After she bought it, we decided on a day to meet up to put the vinyl onto the wooden base, but then we ran into a problem. Today was supposed to be the day that we put the vinyl onto the wooden base using nails and possibly a nail gun, but Angelica said that she had a problem with the vinyl. She said that she need help to smooth the wrinkles on the vinyl. This is a problem because if the vinyl has wrinkles in it, then it will not be laid down smoothly onto the wooden base. If it is not laid down flat, then friction will still occur, and which creates a problem. There should be minimum friction because the ball must glide with ease so that blocks can be knock dow...

Design Journal - Day 5

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                                                                                                                                November 26th, 2018 Day 5 Journal By: Lee Joshua Millora Today, Angelica came to meet with me at my place so we could discuss the next steps of our toy project since in day four, the base for our toy project was built. We noticed that the wood is rough. when we place the launcher on the top of the base, it does not moves smoothly as we move it left and right. The reason is the static friction . Static friction is a force that keeps an object at rest. If we exert a force to the object that is at rest, the value of the maximum static frict...