Design Journal - Day 5
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 friction will be reached, and the object will move. The friction from wood to wood is not good because the mu is 0.5, which is not good for smooth turns. When the force of friction is a bit strong, the object is hard to move. Today, we also sanded the orange colour off the knobs we wanted to attach to the launcher. Here is a picture of the knob with the orange colour sanded off.
Our plan is to minimize the friction between the woods. We think that the plastic on top of the base is the solution to the problem because the surface will be smoother. We tested this out to make sure so we bought a plastic binder from dollar store, which cost $1.50. We cut out a plastic covering for the base of the launcher, which can be seen in the picture below.
Moreover, the ball will move smoother as well because if we roll the ball on the rough surface, the ability to strike to the blocks will be reduce. So we are planning to buy plastic, which will be discuss on day 6. This is a milestone because we figured out a solution to the friction problem, which is to cover the base with plastic.
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 friction will be reached, and the object will move. The friction from wood to wood is not good because the mu is 0.5, which is not good for smooth turns. When the force of friction is a bit strong, the object is hard to move. Today, we also sanded the orange colour off the knobs we wanted to attach to the launcher. Here is a picture of the knob with the orange colour sanded off.
Our plan is to minimize the friction between the woods. We think that the plastic on top of the base is the solution to the problem because the surface will be smoother. We tested this out to make sure so we bought a plastic binder from dollar store, which cost $1.50. We cut out a plastic covering for the base of the launcher, which can be seen in the picture below.
Moreover, the ball will move smoother as well because if we roll the ball on the rough surface, the ability to strike to the blocks will be reduce. So we are planning to buy plastic, which will be discuss on day 6. This is a milestone because we figured out a solution to the friction problem, which is to cover the base with plastic.
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