lo_0l

Nice. These boards are pretty neat! It looks like there are already a couple of carbon fiber skateboard manufacturers out there. Seems particularly useful for longboards. On the shortboard side, I wonder if the longevity would outweigh the expense?

@JohnC, 9,000lbs is quite a bit of pressure. You're definitely headed towards needing engineering support unless you can find or adapt something off-the-shelf. If you're willing to do the calculations on your end, Rock West Composites does have a Build Your Own Tube tool. They have a variety of existing mandrel sizes (ID), and the OD is virtually unlimited. You could talk to @John Kimball about this. You could also possibly under size your tube and then bore and polish it out to your required dimension and tolerance. You could also bore it out, apply a coating to the ID, and then bore and polish it to size. Is there a particular reason this needs to be made from composite? Are there weight limitations? It seems like aluminum or steel might be a better fit.

You could certainly use aluminum parts. I'd suggest anodizing them. Alternatively, you could go with something 3D Printed with a threaded insert. If you were to go the 3D printed route, I'd go with something like PETG or Nylon. You could even use CF PETG or Nylon.

Hey @tenmiles, welcome to Composites Community! I've moved this over to the RWC subforum. There isn't an off the shelf product AFAIK. But anything can be put together with enough resources 🙂 Does this need to be made from carbon fiber?

You can get a Carbon Fiber Ring from Element Ring Co.!

You can make a Carbon Fiber Poké Ball with this guide on YouTube!

You can grab an ultra-light Carbon Fiber Toilet from West Marine!

Hi @SDP92, Welcome to Composites Community! You could use something like this Carbon Fiber Telescoping Tube, and bond on these compression fittings if you want to DIY. This is likely something that @Rock West Composites can make for you! I'm tagging @John Kimball and @Emily Lewis. One of them will be able to help you out with this if you're interested in having one or more made.

Hey @B Davis, welcome to Composites Community! This is something @John Kimball or @Rylan might be able to help you out with. Most of our carbon fiber tubes shouldn't have a problem with that weight. @John Kimballcan get back to you on the right diameter to go with in general. The bigger thing you'll need to suss out are mounts, and that might be the determining factor of your tube size. Though you mentioned you want this to be on the stiff side, you may actually want to have some flex built in. Otherwise, you're tying in two opposing sides of the boat that may be experience torsion, and the railings you're planning to attach this to likely weren't designed for that kind of load. We have some mounting options for carbon fiber tubes with a product series called CARBONNect. In fact, depending on the size of your railings, one of these CARBONNect Angled Connectors may work and allow some lateral flex, but it wouldn't help with the torsion. Unfortunately most of these currently have MOQs (Minimum Order Quantities). That aside, you could always resort to a broom stick and duct tape 😄. I'm sure others will have some input!

Hey @Mark Christensen, That actually doesn't look too bad, but @John Kimball is the expert here. He could correct me if I'm wrong, but I'd probably just cut off the rough bits, give it a quick sanding and a shot of paint. Otherwise leave it alone. We've actually got a DIY guide on how to make a rock guard for your bike to prevent things like this in the future:

Hey @Barocky14, any time you have questions feel free to post them! Doing so is the best way to get a quick response and ensure the answer's out there for people to find in the future!

I don't know, but @John Kimball might!

I'd like to build a small drone. What thickness of carbon fiber plate should I be looking for?

If you're new here, please take a minute to register. It'd be great to know more about you and your experience! Feel free to make a thread and introduce yourself in the this new member introduction forum.

I'm an admin here. I'm pretty new to composites but have been incredibly interested for quite some time! Lately, I've been getting really into 3D Printing. It's been a hobby of mine for quite some time, but I finally feel like I'm getting proficient enough with CAD and my printer to turn out great parts on a consistent basis. I plan on starting to print carbon fiber reinforced parts soon. But first, I need to upgrade my printer to handle the higher heat and abrasion that comes along with printing carbon fiber reinforced material. Some projects on my list are: Carbon Fiber Mirror Covers 3D Printed Carbon Fiber Mounts 3D Printer Carbon Fiber Brackets

Seen cool Carbon Fiber Stuff? Share it! What's the coolest thing you've seen made from Carbon Fiber?

Community Standards As long as you stick to the following principles you shouldn’t find yourself in trouble and subject to disciplinary action: Maintain a friendly atmosphere. Exchange knowledge maturely and responsibly. Nobody’s perfect. Be nice. These rules and guidelines must be followed when participating on Composites Community. While it is not exhaustive, it is expected to be adhered to in good faith. The rules and guidelines listed are the minimum expectations of members. Not every issue can be predicted nor addressed here. Any content or accounts deemed out of line may be removed at any time without prior notice or warning. The moderation team reserves the right to take any corrective actions deemed necessary. The instructions of the moderation team must be followed at all times. Content Content must be related to composites. Off-topic posts are allowed in off-topic. No discussion of items, technologies, programs, systems, or topics that may be in violation of or related to ITAR, U.S. national security, export control, regulated, or restricted content. Conduct No excessive or unnecessary profanity. No harassment, discrimination, or abuse of any kind. No pornography, sexually explicit, or obscene content. No trolling or flaming. No political content. Only one account per person. Spam No spamming or non-constructive posts. Examples include: Posting the same topic multiple times. LMGTFY (Let Me Google That For You) links or comments. Post/Solution/Reputation Count Farming. No shortened links. No thread dumping or bumping. Post your thread in the right location. Advertising No advertising of any non-Rock West Composites material, including: Referral, affiliate, or paid links except those created by Composites Community or Rock West Composites. Self-promotion of personal websites or content. YouTube/Twitch/etc. links are allowed on your profile page. Project/method/issue videos are allowed in appropriate subforums. No promoting items for sale outside of the Classifieds section. No begging, bartering, trading, or asking for freebies, discounts, donations, fundraising, or similar content. Piracy, Hacking, and Illegal Activities Discussion on how to engage in piracy is not allowed. Discussion on engaging in hacking or cracking is not allowed. Content that violates copyright or intellectual property rights is not allowed. Any illegal content or discussion on engaging in illegal activities is not permitted. U.S. law applies, as well as any jurisdictions that may apply to you. Privacy Do not post other people's personal information. Do not post personally identifiable information pertaining to anybody under the age of 18. Signatures Text only, no images or other external content linked. Moderation and Bans Do not openly discuss moderation. If you have an issue, contact our staff. Don’t backseat moderate. If there’s an issue, use the report function. Creating an account to circumvent a suspension/ban will result in a permanent ban and 5,000 years of bad luck.