r/CarbonFiber

Image 1 — Continuous carbon gear made through NASA's technology transfer program
Image 2 — Continuous carbon gear made through NASA's technology transfer program

Continuous carbon gear made through NASA's technology transfer program

The metal parts were not the goal of the patent.

There were some things i wanted to do but the rest of the team did not.

I wanted to use a premade cad file for the outside of the gear.

I also wanted to use a vaccuum bag earlier, they insisted we did another a wet lay

Overall, it was a success and we delivered the prototype on time

u/AccomplishedNail3085 — 3 days ago

Repair Options

Landlord hit my wing with a rock while mowing (rock was still sitting on the wing) and I'm not sure what my repair options would be. I know I can go through insurance and that would only cost my deductible but I would like options before I jump to one conclusion.

u/SamKolodski — 1 day ago
▲ 111 r/CarbonFiber+1 crossposts

Finally finished my carbon fiber setup… thoughts?

Finally started putting everything together and I can’t lie… carbon fiber completely changed the look of the car.

So far I’ve gotten:
– Carbon hood (still have to install)
– Upper + lower grille
– Front lip
– Mirror caps
– gt350 Rear diffuser (still coming in)

Trying to keep it clean and OEM+ without going overboard.

Still waiting on a couple more pieces to come in, but this is where it’s at right now.

Honestly surprised how good the quality/fitment was for the price.

If anyone’s curious where I got everything, Revtra Performance

u/Tranzit12 — 5 days ago
▲ 31 r/CarbonFiber+1 crossposts

I just received a D2C carbon frame. You can see in the pics there is some 'fraying' not sure what to call it, from where the bottle and front derailleur bolts came through. Everywhere else is very clean. I asked the Google AI some questions and it says this isn't something to be concerned about so long as:

  1. Loose Rivnuts: If the threaded insert (rivnut) for the bottle cage spins or feels loose, it can wear through the carbon over time. (they are solid, no spinning etc)

  2. Soft Spots: Press on the area around the bolts. If the carbon feels soft or "mushy," it may indicate internal delamination (layers separating). (there are no soft or mushy areas)

  3. Expanding Cracks: Use a "tap test" with a coin. A sharp "tink" is good; a dull "thud" around the hole suggests deeper internal damage. (it all sounds the same)

Hoping to get some confirmation from you folks. Sorry if this breaks rule 4. Thanks.

u/Civil_Tennis_8766 — 7 days ago

Can I just lay carbon on top of this plastic?

I want to make a race seat for my motorcycle. This plastic base of the stock seat is flexy and has all these ridges, but I need it to use the mounting points on the bottom. Can I just lay carbon across the top of it to make a smooth surface? Doesn’t need to be pretty as It’ll mostly be covered by a foam pad in the end.

u/VeryBadNotGood — 2 days ago

How would you go about making a duplicate mold for this part?

I recently came into ownership of this GG WRX wagon, and I found out that it came with this rather rare "Freeway Dolphin" body kit wing. Since I've had several people ask to buy it off me, I'm curious what all is involved with making a two-piece mold out of it so I could make a copy for myself. I've done basic prepreg skinning before but actually "cloning" a part is a bit beyond me right now. I'd love to learn how!

u/QuixoticGuitars — 11 hours ago
▲ 29 r/CarbonFiber+2 crossposts

What went wrong, how do i avoid it?

The part here is made out of ABS, its the mudguard from a triumph.
I tried making the mould out of this part, applied gelcoat for the first layer, then iso polyester resin and the gp resin, the iso and gp where applied on chopped fiberglass.

I also applied a lot of pva release agent (the blue visible in the mould), how do i avoid this in the future

u/Dry-Discipline-2525 — 6 days ago
▲ 2 r/CarbonFiber+1 crossposts

Hello, I am trying to see if there’s something I could do with carbon rims that I bought from somebody. They tried clear coating it and it didn’t work well, the clear coat got sticky and has alot of fingerprint marks on it because of that. I’m trying to see if there’s anything I could do thank you

I’m new to reddit as I came here for last resorts and don’t know how to put it in the questions thread please don’t remove the post

u/Acrobatic-Match-3839 — 4 days ago

Help Please

Ordered a Carbon hood for my car and the epoxy seems to have a crack in it? Would i be able to sand it down, polish and ppf over it or would i need to take the epoxy off and redo it?

u/Direct-Lie-5101 — 2 days ago

I just snapped a carbon fiber tube, how should I go about fixing it?

Since everything I Google involves bikes, I figured I ask here.

I snapped this carbon fiber tube (tiller extension) recently, just wondering how I should go about fixing it. It doesn't need to look pretty, just got to work as a stick again. (2.3 m tube snapped right in the middle).

I was thing I put a PVC/some other cheap tubing on the inside to align it and wrap it in carbon and dab epoxy onto it?

u/JoshZeKiller — 8 days ago

Is this reasonably possible from home with low experience

As the title states I have very little experience. I’ve done fibreglass before a few times and carbon once with a friend. The white fairings on the side of the bike are fibreglass from the previous owner but I would like to try make the front yellow one in either fibreglass or carbon. Is this even achievable without special tools ect. Tia

u/CardiologistSalt4114 — 6 days ago

Hello, can someone recommend a place in SFV / LA that can work on restoring my carbon fiber hood and wing? Thank you.

u/jeff_cmd — 11 days ago

Carbon Fibre/Glass Fibre Cosmetic Car parts business

Hey, I'm trying to escape the 9-5 matrix and start a carbon fiber car cosmetic/performance parts business here in Pakistan as I love cars and working on them and that's basically what my happy place is currently i just have to go to this job which I have no interest in, for survival, It has always been my dream to build/work on cars.

There are only a couple shops in my country who only do skinning (basically just wrapping parts in CF), but I want to make real, high-quality production parts from scratch.

I’ve messed around with making a few parts before I joined the matrix and realized that a perfect mold is the secret to a quality product, but I’m still pretty lost on what a professional setup actually looks like. Right now, I only know the basics: epoxy resin, CF cloth, vacuum bags, and that infusion is better than hand-laying but that’s about it, and I'm looking forward to learn all of that and I know to master the art one has to make parts and learn from trial and error.

If I want to set up a home workshop that can actually turn out a perfect finish, what tools and equipment do I need to invest in?

A few specific things I’m wondering about:

-What gear do I need to make the best possible molds?

-Can I use a 3D printer for small interior trim or even exterior parts? What kind of setup would I need for that?

-Im in the car culture here and people would pay anything to for body parts like Body kits (in glass fibre) and CF panels, do people usually use fiberglass for the molds or is there any better/efficient way to create molds of something that you have a vision of and you design it on a computer or paper and you want to bring it to the real world?

I want to keep the shop small but make sure it's actually production ready so I don't waste money on the wrong stuff. Any advice on the essential tool list for a pro finish would be a huge help. Thanks!

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u/RespondBusiness — 8 days ago

Befuddled. Super difficult to source CF poles

I have a super niche hobby that would greatly benefit from CF poles.

Approximately 10ft long and 1' wide. There are a lot of options for sizes under this length but I can't find anything for this length. Even from China.

Id even go for a segmented section with a coupler, I can't even find that. Im hoping someone here has some elite ball knowledge and is able to help out. Yall have any thoughts? Thx in advance!

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u/Therealsilci — 9 days ago
▲ 2 r/CarbonFiber+1 crossposts

Carbon crack or paint issue?

When I run my finger nail over it you can feel a discrepancy. Some angles It looks like a crack. Some angles it doesn’t…

Thanks all!

u/Mental_Mirror_7308 — 4 days ago

Composite technician school recommendations

I have been desperately searching everywhere for the past few months but I haven't found a single trade school/program that isn't just a few days/weekends long. I want something super in-depth where I can focus on and learn every step from designing to creating and repairing. At least a month long course, if not more. I also need it to be a place where I can get official certification to show off when I apply for jobs. Idk about these "aerospace" programs and if they are the same thing or not but I specifically want to work on designing and building parts for luxury/limited edition/race cars. I already have some experience working at home, but buying carbon fiber just to fiddle with is fucking expensive, I would rather just pay a bunch for a class. Please give me your recommendations, I'm willing to travel anywhere as long as there is one teacher that speaks English😭 (Also NO college recommendations unless I can take the specific course without touching English, math, or literally any subject that ain't on composites bc I have dyslexia and dyscalculia and barely passed high school because of it)

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u/OkMixture7200 — 4 days ago

i want to strip the epoxy or whatever is on this seibon carbon hood off, any tips on how to do it? I want to go down to bare carbon and then refinish it. So far i applied aircraft paint remover and then sanded it down after this video

u/Own-Percentage-8194 — 10 days ago

Can I wet chopped CF by adding the resin with it into a chamber vacuum bag?

I searched before posting but terms like vacuum and impregnate are really common across all types of carbon fiber methods. Sorry if this is something that's asked and answered, I'm happy to try and find the relevant threads.

I am looking to mold a banjo rim (it's basically a circle about half inch thick and 3 inches tall) using chopped carbon fiber. I have a chamber vacuum sealer that I got for food stuff. I read that you wet the chopped CF by mixing it, or brushing it with resin. Then it said use a vac bag to remove air bubbles. Is it possible to just stick the chopped CF and resin into a bag and basically impregnate the CF under the vacuum? Or would that result in a bunch of dry spots?

I would experiment but at the cost of the stuff I thought maybe I could get a little advice. I have a feeling I'm not going to have any idea how to estimate how much chopped CF to use to fill my mold, I assume it compresses down quite a bit.

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u/uknow_es_me — 9 days ago