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A project log for BorgCube ROV

Underwater robots!

Tim WilkinsonTim Wilkinson 07/22/2016 at 00:031 Comment

After a month away, finally got the ROV back in the tub today.

First, the good news. The new tubes sizes and arrangements means the ROV is much less buoyant than before. I was able to remove all the extra lead weight which still left the ROV slightly negatively buoyant, so I'll need to look at a way to neutralize that (maybe some sort of foam). However, despite that, I was able to make a start on re-calibrating the PIDs for the thrusters.

But .. a little way into this I noticed that the thrusters on one side of the ROV were no longer running. Quickly hauling it out of the tub I was horrified to discover water was in the battery/ESC tube causing a short, shutting down the controller on one side of the ROV. I guess the new fuses did their job.

So now, I'm just drying things out and waiting to see what damage is permanent.

Behold - soggy ESCs :-(

Discussions

Tim Wilkinson wrote 07/22/2016 at 01:55 point

Looks like I'll need to strip the protective plastic off the soggy ESCs to get all the water out, then replace it. A pain in the butt.

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