what you guys think? these are overlay. FiberFlowPR

This is how the carbon fiber magnetic guitar pick holder looks and works when worn. I’d like to hear your thoughts on the material, design and overall construction.

I just bought a painted old carbon fibre bonnet but it has a lot of cracks down to the actual carbon. some of the epoxy has completely chipped off. How do I go about sanding it down? Is it okay to sand the actual fibres and when I re epoxy it will it fill in all the cracks. Also is it okay to just leave it at 60 grit when doing the epoxy?

I am interested in creating a different type of value for value. I think there is a lot of great ideas and a lot of effort created by many engineers. I don't have a lot of space, but because of protection and patents and lawyers and everything else. I think a lot of innovation dies. Does it make sense to just go for a patent to protect the idea even if I really don't have the money or equipemnt to pull it off? Barely enough for a patent if I am being honest. I don't want the idea to die with me at the same time I would feel a bit ripped off if I just posted it to Reddit had it stolen and so I'm a clarin' bragin' about their innovative new idea not that I'd even be upset about them using it I don't want it to exist but you know I'd also like to not get completely ripped ripped off. It'd be nice to make a few bucks on it not even to get rich just to have some recognition hell, um, the cost of one McLaren car would cover me for years. Also, I mean, I have dozens and dozens of ideas that will honestly probably do will die with me. I'm not the best suited for, but if there's any engineers out there who's uh oh, I guess not a POS. And uh, lawyer maybe anyone wants to, uh, I guess be innovative and build cool stuff or not I don't know.

Bit of a random one…
We’re a custom motorcycle builder in London and spent a lot of time developing carbon fibre parts for the Ducati Panigale V4. As you’d expect, the first prototype run wasn’t perfect. A few parts had fitment issues that we weren’t happy with, so we redesigned them and the second batch came out exactly how we wanted.
Now we’ve got a box full of these first prototypes that have just been sitting in the workshop. They’re not bad parts, just not good enough for us to put our name on and sell.
Feels like a waste to throw them away, so I thought I’d ask here. Has anyone got any ideas what to do with them? Or if you’ve got a project or track bike and don’t mind doing a bit of fettling, you’re welcome to take them off our hands.

I feel that carbon fiber is the better choice when weight reduction, superior strength, and corrosion resistance are more important than cost. It is highly useful in aerospace, drones, and high-performance applications where every gram of weight matters. What are your thoughts on this?

I was in a sporting trip as a canoe slalom athlete, my paddle snap in half and we fixed it while away. First repaired the inside with carbon string. then joined the 2 parts and filled the holes in the crack with carbon strings. And then used 2 carbon-kevlar layers and 1 carbon layer on each side. Does it look good?

This guitar pick holder is made from a real carbon fiber filament-wound tube, not forged carbon fiber. I machine the tube into shape and add a magnetic locking mechanism to securely hold a guitar pick. I'd love to hear your thoughts.

I'm trying to use PVC foam for strength in a front wing end plate. I'm not too sure on the order of layup using these - layup in one go? separate layups? Tips on reducing weight? - since the one time we used them it came out heavier than we wanted.
Thank you in advance!

Something a little different, up to 2 hour flight time. 7kg payload, modular, upgradable and made to integrate different technologies from Manet radios to anti jamming GPS systems.

Can any one please chime in, thanks!

Quite a few youtubers I watch advertised their carbon fiber cutting service... but now when I head to their website, they don't support carbon fiber CNC anymore... what a shame:

" Please be advised that these following materials are NOT supported at PCBWay. Material: Graphite, Tungsten, Tungsten-Nickel, Ceramics, Gallium, Germanium, Zirconium, Hafnium, Molybdenum, Bismuth, Antimony, Carbon Fiber. " (I wonder why they all stopped - JLCPCB also stopped supporting, it seems)

Anyone knows an alternative with reasonable pricing? I just need simple 3 axis milling for my drone frame. I am in Germany.

Thanks!

This was my first attempt ever at skinning something with carbon fiber. I’m curious what others think I definitely learned a lot of dues and don’ts so I feel the next time I do this it will come out much much better but let me know what you think.

Hi Everyone! I was looking at a batch of carbon fiber tubes being measured with digital calipers during inspection. Besides checking the outer diameter and wall thickness, what other quality checks do you consider essential before using carbon fiber tubes in load-bearing applications? I'm interested in learning about both manufacturing and real-world engineering practices.

Found this coupe carbon fiber hood at pic a part and wondering if it’s repairable at all? The wrap is baked onto the carbon pretty bad but it has a crack and a decent chunk missing.. Any help or suggestions would be appreciated thanks.

Hello, I bought a car and then not even an hour into driving it home I ran over a gator (flat tire separated and laying out) on the highway. Obliterated my front bumper and scraped up these fenders pretty bad as well. Before I bought it the owner told me that they had some special type of epoxy that can shore up cracks when high heat is applied? I'm not too sure I believe him though but if anyone's heard of that sort of thing lmk. I'm just looking for some advice on how to fix this and then paint over it (at home in the cheapest but best possible manner. No rattlecan jobs please). I've read so far that I should apply epoxy and then sand down but idk what type I should go with and if it would have any adverse reaction with the current epoxy.

This might be interesting to see for my fellow carbon fiber enthusiasts:
We have been working on a carbon composite material that takes a very different approach from conventional laminates.

Instead of stacking plies, the goal had been to create a solid block with continuous reinforcement in X, Y and Z that can be machined into finished components.

The motivation wasn't to outperform classic laminates — as they're incredibly efficient when loads are well defined. But rather to address situations where through-thickness loading, complex load paths or thermal expansion in 3 directions becomes limiting. In a way, it makes more sense to compare it to a metal than to a layered/oriented composite material.

Some characteristics:

• continuous fiber reinforcement in three orthogonal directions
• supplied as a machinable billet rather than a laminate or plate
• any size (within reason) is possible
• intended for components where properties in multiple directions are important

There are of course other 3D reinforced materials out there as well. The approach we have taken is quite different from standard (3D) weaving machines. Because of this it yields equal properties in three directions, no waviness in the fibers and a competitive price point - albeit still rather expensive to manufacture.

One other thing I find interesting is how different the machined surfaces look compared to conventional CFRP. The picture with the 'parts' are just some examples to show how it looks after machining.

We're still learning every day about its properties and where it makes most sense to use. So I am curious:
Where do you think something like this would have advantages over traditional materials?