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Activity Tracking

Page history last edited by Katelyn Sweeney 11 years ago


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6/13/13 Set up the display

Assembled the display in NHS lobby.

Met with Pete Mundy from local cable access TV. 

Sent pictures of the display to MIT for approval.


Finalize display ideas

Had Mark and Henry come in and help us with display and presentation ideas

Cut corners on "ice sheet" to prevent injury


Make finishing touches and test the invention

Prepare for Natick Army Labs showcase

Created the "ice sheet" for display at EurekaFest

Finalized ROV components 


5/1/13 Test system in Dug Pond Natick, MA The system was taken to the docks at Dug Pond in Natick, MA where extensive field testing was completed.  Deficiencies of the system were noted for work to be completed before EurekaFest.  Problems were noted with buoyancy, tether guidance and keeping the operator covered to avoid the sun from visually washing out the computer screen (Team Blog)
4/25/13 Resume completion of land machine  Took advice from comments received during showcase and made a checklist for next due date  

Display invention to Massachusetts community

Displayed invention 

Drove land bot around the cafeteria to demonstrate capabilities

Interacted with other Massachusetts teams

Took team photo with MIT beaver


Seal camera cases

Continue work on electronics on land machine

Decide on battery pack design

Sealed camera case and let sit. Will case it after dries

Continued organizing and calibrating electronics for the land machine

Designed and built battery packs

Continued work on pulley system


Create cable for ROV

Attach camera mount to land machine

Land machine buoyancy


Made tether for ROV out of heat-shrink wrapping-- tested on boom and pulley system

Attached pivotable camera mount to land machine frame to achieve multiple perspectives

Tested foam for neutral buoyancy on both land and sea components


Continue work on boom and pulley system

Organize electronics system

Continued work on double-wheel pulley system

Consolidated electronics board into more compact box system


Work on detachable boom system

Finalize tether system

Continued work on land machine

Used shrink tubing to consolidate tethers

Used hockey stick/shaft clipping system to make boom detachable

3/14/13 Finish conceptual pulley design

Built out design from last meeting for pulley

Tested design with Cat-5 cables

Continued building frame of land machine


Continue building land machine

Devise pulley system

Continued work on the land machine

Altered pulley design by moving one spool to the base of the machine, increasing stability


Continue land machine frame

Cut and attached pieces for land machine frame

Finished frame for pulley system


Continue work on land machine frame

Devise tether system

Decide on emergency flotation system

Continued building land machine frame

Tested prototype tether and pulley system and began build

Used polystyrene foam for emergency flotation on land machine

Some students visited fire station to take measurements of the truck that would carry the machine


Continue work on submersible machine

Work on control board for shore-to-vehicle connection

Work on land machine

Continued building out land machine frame

Consolidated control with a 2CAN controller and a switch-- eliminated the need for a wired connection from the shore

Continued building submersible, attaching motors and revamping camera mount

Cut foam to send to Navy for testing


Work on tether and pulley system

Continue land machine frame

Continued building out land machine frame from the bottom up

Organized and began build on pulley and tether system

Had mentors visit and give input on project so far


Finish land machine base design and begin build

Continue work with circuitry and motor systems

Finished CAD design of base of land machine and built it out

Continued circuitry work

Worked on drive train design and concept

Edited winch system



Continue CAD design for machine

Build land bot frame

Research and build out battery system

Research emergency flotation for land bot

Continued build on land machine

Mounted motors on submersible

Prototyped spooling mechanism

Began build on battery mounts

Designed circuitry board to consolidate resources

Brought ROV Camera to functionality


Develop motor mounts for the submersible

Begin building land machine frame

Attached motors to submersible

Built out bottom of the land machine frame


Work on pulley system and boom angle

Adjust battery system for ROV and decide placement of apparatus

Modeled boom system with cables and a steel rod

Decided on a 45° angle for the boom with two contact points on the vehicle

Redesigned battery schematic and built out connection system


Finalize submersible design

Continue taking apart snowblower for treads for land machine

Continued disassembling snowblower

Mapped out accessories for submersible

1/14/13 Research battery insulation

Researched different thermal insulation techniques for the batteries

Tested different foam insulation boxes for battery insulation


Find treads for the land machine

Build out a spherical frame for the ROV


1/3/13 Research treads/wheels for land machine

Researched specific treads and tread systems that may be applicable

Made a plan to sketch out all sides of the machine before we begin the build


Research materials

Develop pulley system for land machine

Designed boom-and-tackle pulley system and modeled it.

Delegated research jobs to each member and looked up specific components

12/20/12 Develop design for deployment Built out a model of the boom deployment system with materials in the shop. Tested it out with the submersible frame

Organize jobs and subgroups for build

Research cameras

Broke up into subgroups of jobs and research

looked deeper into cameras that can be used for the land vehicle.

12/17/12 Visit Natick Army Labs for ideas about development and materials Visited fabrication lab at the Natick Army Labs
Spoke to engineers about our ideas, possible designs, and what materials would be best for the build


Photo Credit: Amy Castellano, NSRDEC

12/14/12 Work on deployment ideas

Organize team roles for build

Decided upon a deployment idea and began listing materials

Created a Gantt Chart for team roles

12/10/12 Talk with mentors to receive input on progress so far and where we should go from here

Visited the Natick Army Labs and spoke presented to engineers there.

Received feedback from engineers and took notes on possible ideas to consider moving forward


Continue building submersible component

Decide on a design for the land machine

Tested the current submersible vehicle in a tank of water

Broke into land machine subgroups and continued to debate the design for the land machine

12/4/12 Conceptualize ROV arm and retrieval system

-Discussed possible materials for the retrieval system

-Considered how heavy the counter weights would be/whether we should use regular rope or if we would need to use steel cable and weighed the pros and cons of both ideas. 

-Finished up soldering the electronics of the motors on the ROV


Find specific parts for machine

Continue building ROV

Continued designing and building ROV 

Mounted propellers and wiring on ROV

Researched battery and camera technologies for the device

11/29/12 Continue planning for final design

Made a list of the materials and finances required to this point

Planned out the design/brainstormed solutions to problems

11/26/12 Use prototype to conceptualize materials and begin build

Debated different materials for the land machine's frame.

Began using basic ROV parts to build the underwater component.

11/20/12 Figure out necessary parts and financial status Made a spreadsheet of parts and prices for the final ROV.  
11/19/12 Finish final prototype and test for maneuverability Finished building out the land prototype and deployment system. Attached ROV prototype and test drove for maneuverability.

-Finish Lego prototype for deployment

-Know how to program controller

- Lego deployment system almost finished

- Controller in the process of being programed


-Conceptualize deployment system

-Finalize land robot prototype

-Researched winch systems to overcome previous design issues

- Developed land design, taking into account advice from mentors.


-Continue prototyping land machine

-Explore programming device and control board interface

-Broke into a small group to continue building out the prototype

-Discussed problems and solutions

-Broke into another group to explore the programming software and control board

11/7/12 Develop a small prototype of the land machine - Used a LegoTM kit to begin building out a small prototype

-Continue to build out land machine

- Develop concepts for underwater vehicle in order to overcome obstacles

Researched possible materials for land machine

Built out virtual model of device

Finalized plan for deployment ramp

11/2/12 Construct our Land Bot mockup out of PVC pipe.

1) Measured and cut pieces of PVC pipe

2) Constructed and put together frame


Further reach decision on deployment.

Organization in content and groups. 

Method of attachment to body.

1) Made document brainstorming ideas for the method of attachment to the body.

2) Researched claws for the above.

3) Researched the effectiveness of our deployment ideas. 

4) Decided on boat launch deployment technique

10/31/12 Get effectively organized.

1) Made sure everyone has access to all of our information.

2) Organized the blog. 

3) Summarized for deployment ideas.

10/24/12 Determine a method of deployment for the ROV.

Broke into subgroups to determine how each method would affect the submersible and land machine individually, and brainstormed solutions.


Floatation device: 

1) Air tight nylon bag filled with AB foam or helium 




1) Mini crane on the land vehicle

2) Clamp on the ROV that attaches on the land vehicle

3) Ramp with a winch on the land vehicle with a wire attached to the ROV

10/22/12 Develop general concepts in more detail
Discussed different problems the design could face and brainstormed possible solutions.  
10/22/12 Break into subgroups and brainstorm different aspects of the machine Divided up and spent time in groups debating different aspects of the machine. Decided on several different paths to pursue. Delegated leadership roles within the groups.  
10/19/12 Get more specific about components and figure out their weights and costs Looked up specific components, found and recorded their weights (for buoyancy later) as well as their prices  
Design a basic frame and theoretically position components
Built a frame out of PVC pipes and attached sticky notes of each component


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