These two weeks, I did few FEA analysis on the current design. There are parts being purchased. At this moment. I'm heavily depend on Dan to publish his new design and ideas on building this bogie.
This week, we have discussed to reduce our cost of the material, labor cost, and etc. The final decision is that to switch from steel to plywood. However, there are things that we need to focus on choosing the correct plywood. If the plywood we use has avoids, there will be problems when we do laser cutting. Therefore, finding the supplier and get the correct plywood is essential to this semester.
This week, more detailed and calculated FEA analysis is conducted. I setup a word file. The link is https://drive.google.com/open?id=1xC-1DClN5L0nj40wbD66ZfUY0WL9ha3i
During these two weeks , I have redone this bill of material. Since the beginning of this semester, I start to realize that money is one thing that stops our project to go further. My main task is to find expensive components on the BOM that can be replaced by some cheaper parts. One thing I found that can be replaced is the wheel. Originally, the wheels will cost around $300. But, one Mcmaster carr I found a wheel that will only cost $12. Although, this wheel doesn't suit every criteria with our design. But compare to the huge saving. I have decide to let my team know that this is an option that can help us save a lot of time in the future.
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