Design Journal - Day 7

   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 purpose of the change in shape is to solve the disadvantage in our original design, which was that our design had no support for the launcher. Today, we decided that Angel will come down during her first period spare to the wood shop to make the holes using the design we planned. Today was a milestone because we figured out a plan on how to rotate the launcher, which was making the hole in a particular shape so that the launcher can move left and right. On Day 8, the two holes will be made using the above design.