[BUILD] Making a Carbon Fibre Wing: Part 4 - The Rest
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- čas přidán 9. 12. 2020
- The third installment in manufacturing a carbon fibre wing for use on a race car. This video finishes off the wing itself, with work done on the final shaping, the mounts, end caps and end plates.
Per my usual procedure:
The build starts straight away.
The lessons learned start at 22:42
The materials being used:
- Kinetix R246 / H126
- 300gsm biaxial Stitched Carbon Fibre (Easy Composites)
- 200 GSM 2x2 Twill Carbon Fibre (Beyond Materials)
If you have any projects you want help on hit me up through my website contact page and we shall see what we can do. www.chapmaneng.com
The wing calculator spreadsheet is available through my website at: chapmaneng.com/tools/ If you have any questions or suggestions about it please drop me a line.
The airfoil data came from: www.airfoiltools.com/
X-Foil information is at their website here: web.mit.edu/drela/Public/web/...
Did I say check out my website? I like it, I made it (it needs work) www.chapmaneng.com - Věda a technologie
![[BUILD] Making a Carbon Fibre Wing: Part 1 - The Pattern - re-upload](http://i.ytimg.com/vi/CcW24Cm8UO8/mqdefault.jpg)
Pro tip for satin finishes: always use gloss clear until the last coat or two. Then switch to the satin for the last couple of light coats. This will give you a satin finish with depth. Works on wood quite well too.
That's two good tips from you now, I'll be sure to try it too. Thanks
Hey Matt, great build series. A few tips from a composite technician , use sculpting clay / plaster-cine to plug the threads in your alloy blocks (much easier to clean out) and use a grinder with a thin cutting blade for metal to trim excess material. That should help speed up your process a little bit. Big up from NZ
Hey its a friend from across the ditch! You guys have an awesome boat building industry there, I'm really jealous of the cool stuff they play with!
I always stayed away from an angle grinder with cutting disc as I thought it would have been more dangerous, but if it's good to go, I'll have a try. As for the sculpting clay, I'll keep it in mind. How do you get it out after?
I really appreciate the tips, I'm just an engineer who likes to get his hands dirty. I can talk theory til the sheep come home (sorry I had to, I'm bound by the Aussie constitution you see) but I do have heaps to learn about efficient work practices. Thanks very much.
What kind of release do you guys use? I was genuinely blown away by that stoner's stuff, though it does smell like bike chain lube
@@CEWManufacturing Your welcome, I used to vacuum bag infuse sail boats but now am in more general composites. As for the sculpting clay, just a small drill bit and finish it off with the same size and pitch tap to clean it out.
We have used an array of release agents from TL paste wax, PVA and Chemlease release agent, but if it is just something budget or basic packing tape works great as well as whiteboard (melamine ) sheets for flat molded surfaces.
Also it would be criminal (fitting) not the have a sheep gag
I want to make a sail boat one day. I think it would be fun.
I only bought the stoner stuff because I didn't want to fork out for chemlease without knowing how good it was. As I said in the video, I'm never going back. Though packing tape is good to go
Fantastic result!
Cheers mate!
Best of luck with it. Keep an eye out for delamination from the core - may not happen, but I had that issue with a sports sedan wing I made for a friend.
Thanks for the heads up. I'm honestly not too worried about delam from the core as it was designed to not need the core, I left it in because I didn't want to go through the process of dissolving it out. If the skins were thinner and were drawing their bucking strength from the core I'd be a bit more worried, but they should be fine.
Thanks for sharing. Why did it take so long? Things didn’t go as planned and lost motivation? It’s what happens to me all the time.
How much does it cost in materials to build something like this? How much does it weigh?
I’d live to see a follow up video of it being used and abused.
It wasn't so much that I lost motivation, it was more that other things got higher priority. Paid jobs, my full time work (way too much of that), shiny things. You know, the usual. I also really hate sanding, that is a big mental hurdle to overcome at times and get through it to the next step (procrastination).
As for the cost, it was about 450-500 in carbon, foam and resin. Plus consumables. There was certainly things I didn't do efficiently there and could have saved money in those areas, it is also over built.
I honestly cannot tell you the weight, I stupidly didn't weigh it before handing it over. It's not as light as it could be, but I don't think it's overly heavy. I'll see if I can get the new owner to tell me what the weight is.
I want to do a follow-up, I want to check out the deflection under load and also characterise the lift and drag curves, to see how close it is to the original wing segment. I'll see what can be done.
…so could you build a CF wing skin just for the top surface of a STOL aircraft wing otherwise skinned with CECONEX?
*Ceconite Fabric
You could. I can't comment on the airworthiness implications though. But it would be physically possible....