Projects

Projects are in no particular order as they span a variety of topics and subject matter. If you have any further questions about the following projects, let me know. Documentation is somewhat limited in some aspects as it is often one of last things to do unfortunately, talking is faster than writing in some cases...

MIT 2.013 Systems Engineering Variable Temperature Cryocooler
In my mechanical engineering capstone course, my team developed a design for a crycooler with a large operating temperature range. This design requirement was imparted by our conversations with biologists and specialized pathologists who asked us about designing a freezer which could store a wide variety of different biological samples at very low temperatures.












East Campus Handcar Work and Train Design
This past August, I worked on a design for a lawnmower powered train cart system for moving up to 20 people around (slowly). I used Solidworks extensively to figure out how to mate different framing structures together and to run simple FEA analysis on where the most stressed points in the structure existed.












Electric Roller Chain Scooter
Most people building electric scooters today use hub motors. These designs provide great feedback control but sacrifice the ability to gear a motor mechanically. I received this frame as a handed down construct and then began making it my own by adjusting the motor controller, chain drive, and battery management system. 









Single Source Laser Projection
I have recently been working on a combination of some optics hardware and a cheap-ish white, analog laser from Shenzhen. The goal is to make a portable, cheap-ish laser projector that can take an input video and run a projection using a single point separated in time by the motion of 30 kpps laser galvos. 
Link to Further Documentation

Link to YouTube Video










Neutron Detection Through Li-6:
As noted in the NSE article here, I worked on my capstone project for my Nuclear Science and Engineering degree which was a low cost neutron detector for use in agricultural moisture sensing. This project was taken on by a group of 4 including myself and was incredibly multidisciplinary. We travelled to Singapore to present our results and I enjoyed meeting engineers from the other side of the globe.














Safety Taser:
At HackMIT 2018, I fashioned a handheld prototype of a basic taser. The taser uses a small current, high voltage shock to deter conflict. I considered the fact that a taser could be turned against the owner, so I added another level of security such that the taser checks for whether the taser is still on the person (using a connection to the phone) and whether the taser has been allowed to turn on (via an app on the phone).

Link for Further Documentation

Hydrogen Torch and Gas Storage:
Over summer 2018, my friend Joseph asked me about using an array of stainless steel plates to generate hydrogen and oxygen gas via electrolysis. He proposed that we could use the generated gas to run a small torch. Similar projects can be found throughout the web.

In our version, we implement some solution chemistry by attempting to operate at a constant basic pH in the cells. This is done to lower the electrolysis energy barrier to produce more gas for a given battery output power. 

We added a makeshift welder's torch handle to easily handle the ignited gas pathway. We used an arrester to avoid burn back into the gas cell.
Link for Further Documentation


Auxetic Spheric and Cylinder Structures:
While working in the Distributed Robotics Lab at CSAIL (Computer Science and Artificial Intelligence Lab) I was helping fabricate auxetic Structures under Post-doctoral researcher Jeffery Lipton. He shared a variety of ideas with me on their construction. It was very interesting yet quite challenging.
Link to Further Documentation











Fuzz Pedal:
This contraption is resultant from my experiences in audio equipment. The pedal takes in a mono, 1/4" jack and outputs a signal that ranges in amplification, falter, and tremble. These qualitative words describe how the fuzz pedal can vary in the timber with changes to certain resistances (see potentiometers). 
Link for Further Documentation.








LED Curtain:
A frame of Color Kinetics boards in a frame for outside viewing. Work in progress
Originally made by people on my living hall. Working on revitalization. GitHub link
Link for Further Documentation










IoT Reminder Buttons:
I have been using IFTTT.com and ThingSpeak to configure a set of buttons hooked to an ESP8266 circuit board to send JSON requests for emailing myself. The goal of this project was to learn more about IoT requests and keep myself from forgetting things.


Fish Food Autofeeder:
I got a fish in Jan. 2019. I am not the best keeper of other animals but I have done my darnedest to make sure that my fish (named Blue) lives the best life possible. While I went home at the end of Spring semester, I devised a hopper wheel structure to distributed food into his tank once each day to keep the fish alive. I used a spare Raspberry Pi to count the seconds from the last epoch and then send a signal to the servo on the hopper wheel which corresponded to only a slight turn, and slight distribution of food into the tank.










Replacing Battery Powered Devices:
I helped my friend Ally move their 6x AA battery powered lamp strings into a wall-wart powered light strand. This and other similar projects are in the works as I try to reduce battery powered things in my life in exchange for wall-powered systems.


Electric Bike:
 I went ahead and ordered an EBike kit from eBay. The goal of this project was to enable me to travel between places in the Boston region quickly and without causing myself to much stress.

The kit came in a 3' by 3' by 8" box and the wheel itself took up most of the space. The kit did not come with an innertube so I had to use one I had lying around. I received some great batteries from my friend Dane.

I used a watt meter to figure out how much power I used to get from MIT to Harvard without any pedaling. The first kit I ordered had an issue with the hall effect sensors in the motor hub itself. I had to order a replacement part which wasn't too much of a hassle.

The bike is originally a Shogun Trail Breaker, I have thus named it the Shogun. 
Link to Further Documentation

Restoring a Pumped Reed Organ
In an odd turn of events, some of my cohabitants acquired an old pumped reed organ from a local gentleman who no longer wanted to take care of it. Many of the veneer and hardware trim was falling off and the whole thing was coated in a thin distribution of dust and grim. After we scrubbed it down, my friends and I planned how to fix the various unique parts in this ole gem.



4 comments:

Browsing IKEA, checking out the BROR and the FJALLBO

My girlfriend Ally and I went to IKEA recently. While I won't be moving places until September, now is a good time to make preparations ...