My notes from this weeks build day. Feel free to add or correct...
Water Proofing the motors: Be sure to cover all of the solder with liquid tape. The technique was to use another smaller paint brush, grab a dollop of the liquid tape and cover all of the solder you can see with the first coat. Then add a second coat and while it is liquid go ahead and slide the heat shrink tubing on top of it. I mentioned to Dave that I came across some heat shrink tubing with heat activated adhesive built in that appears to do the same thing with less hassel. Also, this design was not intended to completely prevent the motors from getting damaged over time, they are cheap and the idea was that if they corroded it would not be a big deal to swap them out with new motors.
The big news of course was the follow up on the tether discussion. They got it working and the video was fluid over 350ft of 2 wire tether. May be worth holding off potting the end cap with the cable leads so that you can run the new tether cable... else it will require cutting the existing tether and wire on the new tether using an external water tight connection. Some discussion about running power down the tether but not sure how that will power the ROV yet. If doing this your self, be prepared to create a 3 inch ethernet patch cable to bridge from the powerline network adapter to the beagle bone.
Everyone that is submitting code will need to sign a contributor agreement to keep the project out of hot water regarding I.P.
Keep an eye on the plunger that seals the end caps center... the electronics get wet really quickly when it is missing ;-)
Remember to run everything through the Cockpit browser and ensure the motors are running the right direction before setting everything in the molex connector or you might need to rewire to switch directions. (My note: Seems like that should be a toggle in the software).
Apparently some of the ROVs are freezing after about 5 minutes of runtime and require power cycles to get them to respond again. Just over heard this in passing. I've run mine on bench power for hours with no issues.
More discussions around the servo running past its stop point and that causing the constant noise/drain. There is a patch in one of the other threads from this week that should fix the issue, people had not had a chance to try it yet.
We don't yet have the software setup to record video anywhere yet. No body has taken the project to date. I may take a look this week (kids are out of school... so I've taken some time from work).
More discussions on which battery solution to use. This should be interesting over the next couple weeks with the power over the tether offering some assistance.
The cape has rather robust power regulation, should be able to raise the voltage up well beyond 12V. How high is a question I have, but some other builders thought 19.5V is easily within the range, which is nice because old laptop power supplies at that voltage that can drive 12AMPS are all over my house.