Wiring carbon fiber board?

General Composites Discussions Composites Talk
#1

If I have a carbon fiber paddle board I want to run wiring through for some small marine speaker on the nose. I want the battery pack about center. What measures would I have to take to insulate wiring through the styrofoam core?

Second question.
ImageUploadedByTapatalk1411160715.796778.jpg
The battery pack I want to sit in the board. I CANNOT come up with a plan to make it accessible. I was thinking of a compartment with a lid similar to the one above. But I would like to fabricate all parts essentially. ANY and I mean ANY ideas would be great for a water sealed lid compartment. I was thinking I could just make a circular panel wit screw holes and sealed with an O ring. The batteries are very very small. Please help.

#2

One way would be to buy a sealed enclosure from an electronics supply company and set it in a cavity carved out of the board,with it’s lid exposed.
These enclosures are available in diecast aluminium,ABS and polycarbonate and have gaskets and O rings to seal them.

#3

Thank you

I’m concerned about corrosion from salt water. It doesn’t have to be wider that 1 1/2" deeper than two. A threaded circle hatch would be perfect.

#4

This: http://www.defender.com/product3.jsp?path=-1|7504|2290180|2290183&id=49161

Bigger than you want, but light weight, durable, reliable seal.

#5

Thank you. I’m thinking something like that is what I’m going to have to go with. I want to so something like that.

Shape a small lid out of PU foam. With a small indention, so I can adhere a Oring into the grove. Make a mold so I can just use excess material to make hatches. But I don’t know how I could screw them into the board.