Week 4: (Outside-Lab) Material Gathering

This week, we spent the majority of our time gathering materials to be used next lab period at the machine shop. At Home Depot, we spent approximately $40 on springs, zinc plates, and rivets to attach the aluminum pipes to make the frame of our walker. Below are pictures of the materials:

Figure 1: This image displays one of the zinc plates that will be used to joint the pieces together.

Figure 2: This picture displays the Compression Springs that will be used for the walker.

As Figure 1 displays, the zinc plate has two holes on each side, which will be used for riveting. This will be accomplished by drilling holes into the piping and attaching one zinc plate to two adjacent pipes.
Additionally, during this week, the pipes were cut to appropriate lengths, so we can begin construction in the machine shop as soon as we arrive at class on Wednesday, 4/30. The pipes were cut at one of the group members' house with a hacksaw. We also found an old bicycle, which we need for the seat. We were unable to detach it so it will need to be sawed off sometime in the coming week.