Selection of materials
Your selection of material will more than likely have a big impact on many aspects of your design, including effectiveness, cost, build difficulty, and so on. Michael talks about some of the considerations you will need to think about when selecting materials for your design.
After you watch, do some basic online research to find sources of device materials in your local area. Make sure that you double check the sizes and dimensions which they have available. Knowing your standard sizes early may make the device build much easier!
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