Anyone repair carbon fiber?

[Gman]

Trolling board. I like it!

The way that shaft separated along the weave, it looks like it was poorly built. Separating the fibers is easier than breaking the fibers. It appears that the fiber cloth wasn't applied using alternating weave directions.

[Irving]

Trolling board. I like it!

Hey bro, I heard you liked trolling the boards, so I got you this trolling motor for your paddle board so you can troll the boards even when you're not on the boards.

[Gman]

Aw....I never knew you cared. That's so sweet of you.

[Irving]

Aw....I never knew you cared. That's so sweet of you.

I think you may have missed the reference there.

[Invader zim]

What about an aluminum tube epoxied over it?

[Jeffrey Lebowski]

Local: http://www.brokencarbon.com

[MarkCO]

What Ridge said, once CF has been compromised anything done to it may repair visible damage but not have near the strength. The other problem with CF is once it has cracked there are also micro-fissures that often form which will in turn create additional points of failure that are not easily detectable until it breaks.

Yes, Ridge is correct. That failure looks to me like there was a manufacturing defect, or just a crappy layup in their manufacture. There are some hacks out there offering repair services, but cracking again will occur and then you are out twice.

[Jeffrey Lebowski]

It isn't magic, and it didn't come rolled in tube shaft form. Have you ever seen how they made that shape? Of course there are "micro fissures" - how do you think they make intersections and angles, such as the convergence of a top tube, head tube, and seat stays? They lay up sheets at different angles and it takes a lot of sanding, glueing, and clear coating. I wouldn't want the force, such as a paddle, to be perfectly parallel/perpendicular to the layup which is what it appears you have. (Nor would I use CF for something that is going to take a lot of blind banging, which is why I am no fan of it for mtb or Cx).

Having said all that, I would try a manufacturer warranty, but after that, depending on cost vs new, it looks like a simple fix...but do what you like.

[DFBrews]

Waiting to hear back from the manufacturer. It's a 200-300 to get another one. I picked up a nice cheap fiberglass one to use while I'm learning to ride the board. So have I some time.

Current plan is to get a new piece of tube and 2 splices and epoxy resin the dog snot out of it and see what happens.

[Jeffrey Lebowski]

Why not just stick with the fiberglass?

FWIW, a good fix may exceed that. $0.02
I don't know the guy above, but was impressed when he advised against a [joint] crack I had. He later fixed a small fleet of crashed bikes for a team I knew. I do know, and can recommend, this fellow: http://velozephyr.com but good work is not inexpensive. One great project he does is take a noodle of a well-known component out there and reinforce it like crazy...but not cheap.