This is the first week of creating content for the blog as we figure out the direction that we want to take. This year, the group has grown from five members to twelve members, and so in order to utilize our manpower effectively, we’ve decided to split our team into three subgroups and work on similar objectives and compare our …
As we have explained in prior blog posts, we plan to use electromyography(EMG) as our main form of allowing the amputee to control their Krobohand device. In the future, we may consider some form of hybrid of manual and EMG controlled prosthesis, but for now, we will be sticking with strictly EMG controlled via Arduino microcontroller and shield. We have …
We met with our mentor, Terry Wang, this week to discuss possibilities of the redesign of our supplement dispenser. Over the weekend, our tasks were to do some research in order to solve this problem. This Monday, Terry was able to brainstorm with us and we came to a design that is feasible. What we came up with was to …
This week, the group sat down together to draw out a schematic of the filtration system. Currently, we have planned out a four-tank system, each filled with different filter media and connected to each other via PVC piping. After the fourth tank, the water will be stored in a temporary storage tank where and Arduino will evaluate how clean the …
One week from last meeting, we all have some improvements on our design or prototype. Something special for this week’s meeting is that we finally meet in person. It has been a while for us to meet online. Among the 5 members, each of us have worked on our own design. However, there are two very similar design, so we …
Hello everyone, This week we have finished our aircraft design and successfully modeled it in Solid Works. As you can see in the picture above, we have a T tail, fuelselage, and wing designed and ready for testing and eventual fabrication. One of the main challenges of the design was the fuelselage. Initially we started off with a rather bulky …
For week 8, our group generated calculations for each of our designs. The calculation parameters and equations varied for each design. For example, for our piston-rod-mass perturbation system design, the parameters consisted of the rod length, mass, and force exerted by the piston on the mass. During our meeting, we shared the calculations we obtained for our own individual design, …
We decided to use cardboard to model the prototype, instead of going straight to a CAD model, because we felt that we would have more freedom to try new designs at any phase of our brainstorming session. CAD models limit the amount of change we can do to our design. The first change we made was to replace the bolt …
Leveraging the brainstorm session that we did with the different types of elements that we can potentially include in the device and our analysis of the free wheelchair, we used this week to think about how we want to implement these elements into a design. As mentioned in one of the blogs above, the wheelchair spooks are flimsy, there is …
This week, we began to brainstorm our solution with possible device elements. We came up with the following: one way rotating element, a brake, clutch (de-coupler) – direction change, height adjustment, and spring return. For the one-way ratchet, the pros of this device are that it expands the patient population and is simple to integrate into the design. The cons …
