After handing in our motion module, our professors reviewed it and gave us some advice to make it better. One of the things they said was that we could have used less delrin to make our motion module. For example, the base could have been a lot smaller. Instead of having a large flat surface, we could have used two stands to hold up the module. The stands would have used half the amount of delrin that was needed for our original flat base. Another way to save delrin was to change the top piece. Instead of having the top and the side pieces fit loosely, we could have connected the two pieces with a tab-like lip. Not only would this save plastic, it would also make the motion module more stable. With this "tab-like" connection, the sides wouldn't slide along the top piece. So we remade the top piece and this is what it looked like:
In fact the motion module was more stable and the pieces just fit nicely in their proper place. It also gave the module a cleaner look.
Another small change we made was on the bridges. Even though we already made the hole inside the bridges smaller, they were still a bit large (in the width). By making them smaller, it would stop the bridges from moving sideways and just move up and down. We fixed the old bridges on solidworks and printed the new pieces out. This is what they looked like:
Even though this was a small dimension change, it did make a significant change in the way the drawbridges moved. Now our motion module was effective and efficient.
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