Week 3 (Feb 15 - Feb 22)

Spent this week double checking our BOM calculations. Then after we were absolutely sure that we knew how much material was needed for our project we went to get quotes. Campbell Metal Supplies has a large selection of Aluminum. The quote we got for the needed quantity of Aluminium 6061 was high. It was $404.61. This high price is most likely due to the weight and dimensions of the piece we need. We found a substitute over at Sims metal management. They do not have 6061 Aluminium on hand but they do have steel metal plate. By choosing the steel over the aluminum we would save $181.89. This is a better choice as the money can be used for extra materials or motors and since this is a prototype it's better to budget on certain aspects. The design has a large safety factor to account for the extra weight of the steel.