Roamer ROV - RIT Senior Design Project

Deigned by:  Dan Scoville, Jason Caulk, Josh Figler, Antoine Joly, Chris Nassar, Matt Paluch, Scott Gerenser, Larry Shaver

Machined by:  Dan Scoville

Goal:  Make a small ROV that can descend to at least 500ft to video shipwrecks

Shown above is a small ROV that myself and a team of guys from RIT's Engineering program made as our senior design project.  The goal was to make an ROV that could be used for my shipwreck search hobby.  Enabling me to look at shipwrecks that were beyond the range of typical technical diving.  The designs above was made by the team along with custom electronics and software to control the ROV.    

The frame was one of the 1st things that was machined.   The design is basic but functional.  The ROV is powered by on board batteries.  This would allow us to have a very light weight tether for the video and control signals.  The on board batteries are housed in the tubes on the bottom of the ROV.  The tubes are made of PVC pipe.  The back end is sealed up with a PVC pipe plug (machined on the lathe) and the front has a delrin lid with an Oring to allow the batteries to be removed for charging or swapped out with fresh batteries.  

The housing for the electronics is also made from a PVC tube.  The design is for the tube to have an aluminum lid on the top and bottom.  The lids are sealed with orings and held on by spring loaded latches.  The lid for the electronics housing has sealcon compression fittings in it to seal the wires that will need to penetrate into the electronics housing.  It would have been preferable to use subsea pluggable connections for reasons of cost this was not possible and the sealcon connectors make a great seal on the outside of wires even at depth.

In parallel to the frame design and machining the electronics design was taking place.  The PCBs design was layed out in free software downloaded from express PCB.  Once the board designs were pretty well complete I printed them out on paper and glued the paper to perforated board.  Then cut the shape of the boards out.  This let us mock up the boards on the electornics rack that would eventually be lowered into the electronics housing.  

As parts were completed they were added to the ROV frame.   Pictures above show the main camera housing and then the battery housing for the lights mounted to the front of the ROV.  The lights would be added later and were completely stand along for this ROV.