Author's posts
Mar 22
Armband level up
We have good news and bad news. Part one of the bad news is that our knee motor broke. Our knee system uses a worm gear and regular gear; as we mentioned in the last entry, the regular gear is made of plastic and got stripped. In the meantime, we’ve ordered replacement plastic gears so …
Mar 11
Leg brace shown to the user
We’ve started integration for our project. The fiberglass mold has been completed and we were able to incorporate that into the overall brace. We made two fiberglass molds: one of the upper leg and one for the lower leg. As one can see from the photo, the molds are a little rough around the edges, …
Mar 01
Design details
We’ve completed a first iteration of the leg brace and delivered it to the user. Video and pictures should be coming soon (since the user will be interacting with the leg brace this weekend). In the meantime, the following are some updates: In a previous entry, we showed the box enclosure, which will hold the …
Feb 25
Toggle handle
We thought that we could use existing parts to make the kind of handle our user wanted (their description for the kind of handle they wanted was something like a fire extinguisher handle, i.e., could be worked in a squeezing fashion). However, we weren’t able to, so we decided to design and 3D print a …
Feb 22
Many updates
Dec 02
Control system progress
The control system is responsible for processing and directing the signals of the our system. We have a variety of user inputs, which are sent to the system via buttons. The inputs are then go to an information display, which show whether the system is in automatic or manual mode. If it’s in manual mode, …
Dec 02
Welcome to the site
Welcome! This is the website for Project Hermes, an electrical engineering (ECE) senior design project at George Mason University. This project was started in Fall 2014 and will continue to Spring 2015. The purpose of this project, as stated in our “About” page, is to design, construct, and test a motorized leg brace. We’ll be …