A few months ago we added Neutrally Buoyant Tether to the experimental part of our store. We sold through out stock faster than expected, but more is on the way and we should have back in the store by the end of the month.
We have had others ask about how the termination of the tether works. I wanted to get the conversation started about the best way to go about this.
Here in the lab @Eric_Stackpole and I have made separate terminations with the tether on v2.8 ROVs. We each did it separately but our approach was very similar. When we took these out in the field we were noticing that when at depth the tether would begin to sink. We suspect this is due to water either hosing or wicking up the inside of the tether (this is still unconfirmed).
We are going to conduct more tests here in the lab in the pressure vessel to figure out the cause, as well as a better way to terminate the tether.
Here is a step by step that @Eric_Stackpole did.
Step 1: Strip back the outside jacket and cut the wires in order to expose a length of the kevlar strain relief.
Step 2: The tether wire was soldered to a quick disconnect. It was then looped around itself in order for no strain to be applied on these joints when the tether is pulled.
Step 3: Use knots in order to attach the kevlar member to the quick release in order to provide the strain relief.
Step 4: String was tied around in order to keep the kevlar in place and then hot glue was applied.
Step 5: Use electrical tape to cover the connection.
Step 6: Put sleeving over the connection in order to protect it.
We would love to hear what other people have tried so the design can improve for everyone!