Below you'll find a list of all posts that have been categorized as “2016-2017 Krobohand”
We’re ecstatic to announce that Krobohand took first place in the Beall Competition, in doing so giving us $7,500 of funding to continue to develop our ideas. We plan to use this money for multiple purposes, including but not limited to incorporating our company, approaching a patent attorney, electronics or materials we’ll need once our MAE funds run out, as …
We’ve come upon our first official prototype, able to perform the three basic motor functions we’ve been designing for: lateral digit movement, closing of all digits, and moving the thumb inwards and away from the palm. The lateral movement of the fingers, and the extra degrees of freedom in the thumb is what we think set the Krobohand apart from …
Let us premise this by saying this is an extensive blog post that arguably should be split up into multiple parts, but as this is the submission we made to the 2017 Beall Competition, we thought it’d be best to keep the entirety of it together in one blog post. ——- Krobohand Final Product and Business Case: Final Product Description …
Coming out of the Winter Design Review, we’re enthusiastic as a group. After being able to present a working prototype finger to many different people, we were surprised by the Dean with one of the Dean’s Choice Awards for the MAE department. Below is a video of our finger prototype attracting people to our table: Moving forward, we have three …
As part of the design for Krobohand, we are using electromyography (EMG) to control the actuation. Through EMG sensors, users will gain greater control of their prosthesis. We originally began working with the Olimex SHIELD-EKG-EMG on an Arduino Uno microcontroller. Using the proprietary software ElectricGuru, we were able to analyze signals from the targeted muscle group through the shield. However, …
The designs of both the lateral joint and thumb have been evolving extensively. Many iterations have been gone through the entire process of drawing, 3D modeling, printing, and testing for viability. We are close to what we think will be the most efficient, effective, and viable design. The requirements for these designs focus on ease of printing, as well as …
These past two weeks focused on adapting the finalized finger design for tensile testing in the Instron machine. Once we had our adaptation printed, we were able to successfully run a series of four tensile tests with the help of the Engineering Tower Lab Manager, Steve Weinstock. We tested a single tolerance design of 0.45m, four times, and averaged the …
Our first week for the Winter quarter centered around continuing to work with the electromyography(EMG) capabilities to control a whole prosthetic hand, as well as testing the structural integrity of our current finger design. There may be a limiting factor in the way that basic EMG sensors allow us to control multiple sensors. To pick up a variety of signals …
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’ve continued to work on landing on a finger design that we think will be the most viable in our final upper limb prosthesis design, Krobohand. As we showed in our last blog, we had a complete redesign of the finger, with many changes that proved to be extremely beneficial in practicality, but also some that were not as beneficial. …
