First off I really enjoyed watching the last conference call and seeing the work that has been done. Great job on the voltage monitoring and the new possibilities of tether connections. I just wanted to show a bit of my build to the team as I have taken a slightly different approach for a few different reasons. The first was because I came across two perfect Stainless steel tubes at my local scrap yard that fit the bill for what I wanted. Second reason was because I wanted to mount a rear web cam so I could view what was going on behind the ROV without turning it around. I have stayed with the Open ROV design for main Electronics and changed a few things such as Motors so that I could have a 5mm shaft to mate with the Duct fans and housings that I will be using. This was in hopes to eliminate the issue of shaft couplings plus the duct housings will be very easy to mount on the exterior of the tube. I will have an acrylic Dome on each end of the Tube once I get the flange cut and welded on to the rear of the tube. I calculated the Buoyancy of the Tube with the domes on, to be around 17Lbs in fresh water and currently the weight of the tube with the batteries and electronics comes in at close to 10lbs. I still have to add on the weight of the motors lights and the stainless steel feet so I am hoping I have lots of buoyancy left over for a gripper arm etc. I decided also to go with two LIPO 5000ma C20 batteries again hoping to eliminate some of the issues that were talked about in your last discussion with voltage drops. I have not figured out yet which way to connect these but was thinking one for the motors and the other for the electronics and lights and maybe someone can guide me in the best direction to go. So at this point I am waiting for the Capes so I can do some testing. I was also going to use two vertical motors one on each side of the tube but listing to the last discussion on current draw I may wish to go with only one vertical motor or maybe even change to Brass props so we will see how these batteries hold up before I invest in new props. I have added a few pictures for you to look at.