After waiting a few weeks for some parts to arrive, we finally received them so that we can continue with building the mechanical portions of the toy. Also, other parts were received so that it will be easier to build the electronic portions as well. The biggest improvement currently is the Pull String module. Before, we were using a lawnmower starter as a part of our toy. However, with it being bulky, changes needed to be made and we decided to use a constant force spring in order to reduce size and make the toy easier to use for the kids.
Figure 1. The apparatus used to provide a pull string toy. Changes were made because this portion of the module was very bulky. While it could fit, it had to be at the expense of other modules.
Figure 2. The new mechanism of the toy will be similar to how a tape measure works by using a constant force spring.
Figure 3. The new module. While looks very similar to the module shown in Week 5, (albeit from the other side), the mechanism itself is very different.
Figure 4. The new mechanism does not take up as much space and is able to fit in the toy without compromising other parts.
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