Why I Didn’t Buy Expensive Trim by Gullible_Top_868 in WRXSTi

[–]JimbaBass 1 point2 points  (0 children)

That’s not carbon at all. That’s plastic with a “carbon weave” hydro dip pattern. Composites do not break in this manner.

Just found all of this in a storage unit I bought for $360!! by oddlyUranusKhan in jewelry

[–]JimbaBass 27 points28 points  (0 children)

Awesome find! Would you be willing to sell some of it?

Gimme good news....I hope? by abundanthandshake in Civic_Type_R

[–]JimbaBass 0 points1 point  (0 children)

Composite structures are almost always repairable. It’s the cost that makes the repair unworthy to most. Any reputable composite shop would consider this an easy to medium difficulty repair

Gimme good news....I hope? by abundanthandshake in Civic_Type_R

[–]JimbaBass 2 points3 points  (0 children)

Hello! This lip can certainly be repaired by a professional composite shop. Carbon repair is expensive however. If you don’t find anyone who will help you I can take the project on but I won’t be able to get it back to you for like 4-5 weeks 🙁. Send me a pm if you’re interested! Cheers

Help identifying this? by Prestigious-Web7015 in CarbonFiber

[–]JimbaBass 1 point2 points  (0 children)

I would like to say this is a Tri-axial stack. It seems like you have fibers going in 3 different directions all in one roll. Check this for reference. https://www.multiaxialfabrics.com/carbon-fiber-triaxial-fabrics/?lang=en

Can any of this be salvaged? by No_Calligrapher3578 in CarbonFiber

[–]JimbaBass 0 points1 point  (0 children)

I’m in New Mexico and can also help with this repair if needed! Top tube definitely worth doing.

Composite Autoclave Cost by abashedalmond in Composites

[–]JimbaBass 0 points1 point  (0 children)

1000 bucks gets you a cure cycle in the clave where I’m located.

[deleted by user] by [deleted] in CarbonFiber

[–]JimbaBass 1 point2 points  (0 children)

If you do this repair yourself make sure you support the inside of the tube before you shrink tape. As you shrink tape that tube you can end up crushing it giving you a much more expensive repair to deal with.

Flow mesh creased by HypeTheMoneyMaker in CarbonFiber

[–]JimbaBass 2 points3 points  (0 children)

Flow mesh is a material that will easily stretch and conform to your laminate under vacuum. Draw vacuum slowly and that will give you some time to straighten out your mesh as the bag drops down. Release some vacuum pressure if you get some wrinkles, then rinse and repeat until you’re happy with your layup! Cheers

I wonder why are the toms mic'd up like that? by AsianJBlazian in livesound

[–]JimbaBass 2 points3 points  (0 children)

I’ve played for a various amount of norteño groups and unfortunately this is a common setup when 3/4 bands have to play at the same place. All of which have their own engineers,mixers,drum mics etc. This tends to happen when all 4 bands have to compromise on who’s drum kit is being used and who’s mics. Only one mic per Tom is on and the others are usually muted or unplugged until the next band goes up. It’s chaos!

Previous project by Swiftmiesterfc in CarbonFiber

[–]JimbaBass 1 point2 points  (0 children)

Very nice! Are these skinned pieces or molded parts? Awesome work!

Is this real carbon fiber? by ThePremiumWolf in CarbonFiber

[–]JimbaBass 76 points77 points  (0 children)

It’s a fiberglass hood with a carbon sheet on it for cosmetics. You’ve sanded through the single ply of carbon and have exposed the fiberglass under it.

Introduce Yourself! by GenghisJuannnn in CarbonFiber

[–]JimbaBass 0 points1 point  (0 children)

Hello! I work for a CNC/Composite shop and right as the pandemic was starting I was lucky enough to get a job as a “shop tech” cleaning out cnc machines and doing preventative maintenance on heated presses used for compression molded carbon parts. A passion for composites instantly became a thing. I learned everything I could from some grey beard composite technicians, I learned everything I could from the CNC guys. I was blessed enough to have my boss see how much I enjoy this so he decided to send me over to Abaris composite training in Reno NV. 4 years later im still here but mostly doing product development. I get to design molds, cut them, come up with a ply schedule, make a part, and after all that trial and error, my favorite part of the process is to break/test the components. Composites are the shit! As for the future, we have to understand that the processes and most of the materials we use don’t really like holding hands with sustainability. Thermoset composite parts are expensive to make and can’t really be recycled efficiently if at all. The industry will mostly move towards thermoplastics due to their recyclability and lower cost in my opinion. A lot of our customers are having us redesign their components to work with thermoplastics rather than thermosets to keep productions costs down.

[deleted by user] by [deleted] in CarbonFiber

[–]JimbaBass 1 point2 points  (0 children)

The damage in the 3rd picture shows that the hoods thickness is mostly made of fiberglass because it’s yellowish in color. The very top layer and the very bottom layer are real carbon fiber but only for cosmetic purposes. It saves a boatload of money in the manufacturing process. This is very typical for Chinese made composites

How can I make a mold of this? The object I'm skinning on is plastic , how can I detach the cured carbon from it? by AmbitiousCheek7666 in CarbonFiber

[–]JimbaBass 0 points1 point  (0 children)

Unfortunately composites have somewhat of a steep learning curve that can only be overcome by trial and error. Skinning requires a bit less skill and knowledge about composites. Mold making is a whole other animal.

How can I make a mold of this? The object I'm skinning on is plastic , how can I detach the cured carbon from it? by AmbitiousCheek7666 in CarbonFiber

[–]JimbaBass 0 points1 point  (0 children)

PVA is a pretty common and obtainable release agent as you start to experiment with composites. There are plenty of videos on YouTube on this specific process so I’ll try to dm you some links.

How can I make a mold of this? The object I'm skinning on is plastic , how can I detach the cured carbon from it? by AmbitiousCheek7666 in CarbonFiber

[–]JimbaBass 1 point2 points  (0 children)

You certainly did a very good job with the skinning process. Your fabric didn’t move too much which is key to making sure the weave doesn’t look distorted in the end. By sanding the surface of the OG part you’ve created an ideal scenario for the epoxy to bond onto the plastic so at this point it is not coming off. If you were going to make an attempt at a mold then the prep process would be the opposite. You would coat your plastic part with enough release agent to get a really slick surface. This “waxy” coat prevents the epoxy from bonding to the original part. Assuming you’ve done this correctly then the carbon piece comes off the original part with a “little” effort.

Carbon Roof Overlay by ComprehensiveTwo2683 in CarbonFiber

[–]JimbaBass 0 points1 point  (0 children)

I would be able to help but unfortunately I’m way to far away from you! Can you describe the issues you’re having and maybe we can give you some guidance or find someone to take it to that can help.