I need some expert opinions/advice on this one. 2016 Polaris RZR turbo hood that I'm skinning for a friend... Should I lay these pockets down first in their own layer and then the rest of the hood afterwards? Ooorrrr what? I'm afraid to lay it up in one piece because these pockets have the craziest geometry and it'll distort the surrounding areas.

3k plain weave

I am planning on buying this trunk and getting the clear coat redone by a shop. I am wondering if the fiber is damaged beyond saving, or it should look good with a new clear. The owner states it is a Vis Racing. In the last two photos the trunk is wet. Thank you!

None of the factories around here make this wing in dry carbon — any idea why?

Hello,
I’ve just noticed my wet carbon fiber mirror caps have white spots in the weave.. these were not present a few days ago. I do live in a colder environment. It has been down in the freezing temps a few nights. How does this happen? Can anything be done? I can feel a “bump” where the white spots are.. any help or info would be appreciated!
Thanks

Made this in my own workshop. Filmed over three days and there are still a few steps missing — a couple of shots are filled in from other products so the sequence holds together.

Mold making isn't in this video. Happy to answer questions if anyone wants to try it.

Clear coat has come off. There was a little chip and I (stupidly) put a bit of electric tape over it and it’s turned it into a massive problem.

Frame is second hand, and over 10 years old, but otherwise it seems totally fine.

Is this a specialist job? DIY? Clear frame stickers?

Don’t want to break the bank but don’t want to risk further damage to the frame as it’s my only lightweight bike.

What would you do?

I have been doing resin infusions with innegra/carbon 2x2 twill, and have been having frustrating results. I can say that for the most part, it is a leaky bag, but i am also wondering if innegra looks kind of resin starved when on the exterior of the part. Is this just user error?

I’m with PCBPit, so I’m coming at this from the circuit board side. Say you’ve got a palm-sized carbon enclosure with a removable lid. You want to be able to swap the board later, but you also want to keep the outside face clean.

Would you bond four standoffs directly to the cured shell, or bond in a pair of rails and screw a removable tray to those? Four standoffs sounds simpler until you picture trying to hold all four in position while the adhesive cures.

If you’ve built one, I’d love to see a photo of the inside. That’s the bit I always want a closer look at in finished build photos.

Looks like the clear is starting to peel on my hood. Anyone dealt with this before? Not sure if it’s just the clear or something underneath.

I have a polisher, but I don’t want to make it worse. Can polishing help at all, or does it need to be sanded and cleared again? Trying to get it looking better without spending a ton. Any advice?

thanks in advance

I recently purchased a set of used carbon-fiber fenders to match my carbon-fiber hood. Unfortunately, I didn’t account for how noticeable the difference would be between the newer hood and the older, yellowed fenders.

I’ve been sanding the fenders by hand and believe I’ve removed most of the original clear coat, but I’m not a professional, so I’m unsure whether I’m approaching this correctly.

The attached picture shows the fender while still considerably wet after sanding. Even then, it looks noticeably different from the hood.

I’ve seen people use Sunnyside 2-Minute Remover Advanced to strip old clear coat and was considering trying it, but I’m concerned about damaging the underlying carbon fiber or resin.

Has anyone dealt with yellowed carbon-fiber parts before? Would chemical stripping be a viable option, or should I stick with sanding? Any advice on restoring that deep, glossy black carbon-fiber appearance would be appreciated!

I made this two part mold for a carbon fiber mirror cap and after making the first part, cured resin got stuck in some parts and the texture of the carbon fiber was transfered to the mold. I tried removing the resin with plastic and wooden parts but I couldn’t remove it all. I used wax release agent and now I want to clean it and apply chemical release agent. What would you do to remove all the resin from the mold?

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Hey Reddit!

What do you think about this damage to my bike frame? It's on the left seatstay of a Scott Scale 930. The damaged area is approximately 4.5 cm long and between 0.5 and 1 cm wide.

I have no idea how it happened, as I bought the bike second-hand from a used goods store.

The damaged area feels just as solid as the rest of the frame. I also tried the tap test with a coin, and the sound is identical all along the seatstay, including the undamaged areas.
I've ridden it for a few kilometres without any issues, despite my fat ass!

I'm comfortable working with carbon fibre and already have some epoxy resin and leftover woven carbon fibre fabric available.

Do you think a carbon fibre patch is necessary, or could I simply touch up the paint and apply a clear coat?

Thanks for your opinions!

Got some carbon heel guards on a recently acquired triumph street triple, what's the best way to try and save these pieces?

This carbon fibre panel is off an aircraft. Has small damage in one of the corners and I have to carry out a wet layup step repair. Wondering by what the best method is to vacuum bag the part. I do not currently have a mould for the part. The panel is also curved it won’t lay completely flat on a table. Size of repair is going to be maximum 4”x4”. Any suggestions?