From ARVP
Project Memebers
- Chris Woloschuk
- Brodi Roberts
[edit] Internal Wires and Connectors
The main goal of the wiring for Bearacuda is to make it as simple as possible to safely and correctly connect the various electronic components by current and future members of ARVP.
To achieve this, the following steps will be taken:
- Label wires
- Wires have been labelled with numbers. Later on they will be properly labelled with words and descriptions.
- Colour coded connectors
- Coloured connectors have been used to visual show which connectors are meant to be attached together. In addition, when there are two or more connectors needed, they are arranged in a unique way so that only they will fit together. Combined with the specific colours, it is very difficult to hook up the components incorrectly.
[edit] Underwater Cables
Subconn wet mateable electrical connectors were used to make the cables that connect the thrusters and the battery hulls to the endcap.
Scotchcast insulating resin was used to waterproof the parts of the cables that had been spliced.
Grabber Underwater Connector
- Left Ground: Pin 1
- Left Signal: Pin 2
- Left Power: Pin 3
- Left Switch: Pin 4
- Right Ground: Pin 5
- Right Signal: Pin 6
- Right Power: Pin 7
- Right Switch: Pin 8
- Progress Update for 2009
New cables are required for the 2009 competition. Three more 8-pin Subconn connectors have been purchased to accomadate the hydrophones, treasure grabber and camera.
We are going to be using Scotchcast again to waterproof the cables because it worked reasonably well at the competition last year. For future moulds, PVC pipe will not be used as it is near impossible to remove. One idea that worked quite well was using cardboard and heavy duty plastic bags to make the moulds for the individual hydrophones. The plastic bags were cut up into large rectangles and then taped to a thick piece of cardboard. The cardboard and plastic were then wrapped around the hydrophones to create a tube. The Scotchcast does not stick to the plastic bags and the cardboard adds rigidity to the mould. As well, the team learned from last year to remove the mould 3 to 4 hours after the Scotchcast had been poured.
