Hello all…Long-time lurker, just started posting. I posted this in the “Build” section of the forum, but was thinking this might be a more appropriate location so I deleted that first thread, and will re-post it here…
I am in the process of researching a BR2 to get started. I live in the Great Lakes region and would like to perhaps do some fisheries-related research activity(s) with the unit, so I am trying to decide which unit might be best to get started.
I’ve spent a week or two now on the BR website, and going through all the forum pages. There are some incredible builds listed here! I’ve also spent hours and hours watching all the YouTube videos I could find about the BR/BR2 stuff. Wow! Here’s a little background information about me (and my use case), so that you might better understand where I’m coming from with the questions I want to ask.
I have degrees in both aquatic biology as well as Computer Science, and have been working as an embedded systems developer (I use Qt a lot) as well as a mechanical designer (Solidworks) for the past 8 years or so. I also have years of experience in aviation and aircraft maintenance, and have all the usual fabrication tools (welders, lathe, mill, etc). So eventually I would love to be able to tweak the ArduSub software for my needs–and possibly even design/build some custom vehicle components. I will primarily be working depths of less than about 125 feet or so, although it does get somewhat windy in the areas I’ll be spending time. So that being said, I was considering either 150m or 200m of tether–as I would maybe rather have a little too much tether rather than too little.
That all said, I would greatly appreciate input on some questions I have:
Base kit vs “heavy configuration”? If I plan to go to the heavy configuration in the future, is it advisable to just do right away?
Does the heavy configuration essentially force you into the Outland Tech power supply, in order to be able to run the extra motors?
Is it advisable to just buy a longer tether (and a spool) up front, instead of getting the 100 meter stock tether, but then having to upgrade in a year or so? Seems like a guy wouldn’t go wrong with the 150 meter tether, are there any latency issues with longer tethers? I haven’t looked at the software source code much yet so I’m not sure about things like baud rate, etc. But since all conductors have a resistance value, and since line noise is always a potential issue, is a shorter tether “better” in that sense, or is it irrelevant?
Add-ons. I can see myself adding the sonar, gripper and other add-ons fairly quickly. So this is another reason I’m considering just moving to the heavy configuration straight-away. But again–I’m not sure about the extra power requirements of the extra motors in this configuration, and really don’t want to have to get into ground power unit right from the start.
Anyway, those are just a few of the things I’ve been trying to sort out. I have found some details in various forum threads, but I just thought it would be nice to have all the questions asked in one thread so it would be easier to keep track of the information.
Thank you in advance to anyone who shares their experience(s) and opinions with me. I greatly appreciate the information.