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Tether Disconnect w/ Locking Connectors

(Shannon) #8

Another thought- we had a small splice, which means it took a lot of resin to fill the mold, and we still had a bit left over. Had we wrapped the splice in electrical tape, as suggested, instead of heat shrink, you could build it up a little and not need as much resin to fill the mold. If you had more molds, you could do multiple pours at once. It is feasible to separate the resin into smaller batches, mix as needed, and reuse the mold. may want to put a little silicone spray on the mold to make it easier to remove and not damage it.


(Pierson) #9

Good to know, thanks!

(undersearobotics.com) #10

@Shannon - An alternative to using more electrical tape to make the wire bundle larger, you could also make a smaller mold. Some scrap, easily milled plastic (such as HDPE or UHMW), a router, and a bit of time at the bench and you could probably make a mold that’s closer to what you need.

(Shannon) #11

3D printer would do a great job.


(SonarGuy) #12

A customizable splice mold is available for free :

Download and install OpenSCAD after downloading, it has all parameters required

(Davide) #13

Hi all,
this is my version:

I used seaconn 4 pin. Differently from Shannon I added an ethernet connector on the “deck” side of the cable. I further built an extra cable to be more easily handled during bench operations. Female ethernet connector has been installed in the Fathom x ethernate surface box. No communications issues at al.
Total cost: 200 Euro


Tether quick connect?
(Davide) #14

(Davide) #15

(Jake) #16

Thank you Shannon and Davide. I just ordered up some seacon connectors and scotchcast to make up a tether disconnect similar to yours. ROV will transport in a smaller package once I get the tether separated.:+1:


(Shannon) #17

The removable tether makes it much better. I do need to work on a small reel that magically hold 350’ of cable :slight_smile:

(Doyle) #18

What do you think the depth rating is for this splice?

(Per Søndergaard) #19

Is there any reason that noboby is using a bulkhead connector for the tether disconnect?

I was thinking about this:

(Kevin) #20

The bulkhead connector doesn’t fit in the penetrator holes as is. One of them would need to be drilled out by a few mm.

(Shannon) #21

I would have, but did not see that part when I was shopping around :frowning:

(Per Søndergaard) #22

I understand, but that would be easy since a diameter of 7/16 inch = 11,1 mm and the penetrator is 10 mm it would not need much work. The only thing is, is there room enough for the outer shield?

(Kevin) #23

@Holtz_dk I have one, I’ll check tonight for clearance.

(Per Søndergaard) #24

Perfect, thanks!

(Kevin) #25

(Per Søndergaard) #26

Looks good, think I will go for that one.
Thanks for the help!

(Doyle) #27

Did a quick BOM list on the site:
MCIL4F $33.12 Micro-Wet Inline Connector - 4 Socket Female
MCBH4M $55.38 Micro-Wet Inline Connector - 4 Socket Female
N-W-S002-Brass $6.00 Nut & Washer - Brass
MCDLS_F $7.00 Micro Wet Female Locking Sleeve