I have rolled several carbon fiber tubes for an upcoming two stage rocket flight I'm doing. Patreon: / charliegarcia Twitter: / astro_chuck Instagram: / astrochuck96
I think he works on liquid rocket engines in his day job now, maybe it is true that it's a mistake to turn a hobby into a job XD I can imagine it doesn't feel like time off of work to do the same thing.
Nice tutorial Charlie! I find using a foam roller to spread the epoxy over the cloth makes things easier. Instead of the heat shrink tape, have you tried one of those heat shrink sleeves?
How do you know what oz of carbon fiber cloth you need? Im looking online for carbon fiber square tubes and prices are very high. But i want to build a 3D printer gantry with this for a project. Is vacuum forming something you could do or is that just ridiculous? edit: by the way, if you posted the materials im sure you would get a kickback from affiliate links, just mention that those are affiliate links so people don't get mad.
Hi, thank you for this informative video ! Considering you experience with carbon fiber, I would like to submit an inquiry. I am building a folding bikes with carbon fiber tubes and steel lugs. The torsional stiffness of the Roll Wrapped tube is disapointing. I your opinion, how much better would a Pull Winded or Braided tube would perform in torsion compared to a Roll Wrapped ? Regards
The braided sleeve tube will dramatically outperform the pullstruded tube in torsion. Your goal is to have fibers running in the direction of the principal load axis.
Maybe I need to try this. My Balls project next year is a minimum diameter 75mm M to M multi stage rocket. What launch are you going to, or is it a FAR trip?
@AstroCharlie I would love a followup video after the flight with feedback on the homemade carbon fiber tube! If it works out good I will have tontry this for the BALLs project.
Cool video and I really wish you would have showed the end process a little more but still informative. I also like the fact that you wrapped it with fiberglass after knowing that you have to sand through that. Does this coming from someone who makes hundreds of infusion carbon fiber parts a year. Great video!
To make a composite pressure vessel you need to have the fibers running in a particular direction : 55° from the axis of the tube. Here, the fibers are at 90/0° which makes it a fairly poor pressure vessel. In order to make a composite motor case, without the expense of a winder, you may use CF sleeves (choose the right nominal diameter to have a 55° angle)
@@shere_kan8329 There's no reason I couldn't cut the cloth at an angle to achieve more appropriate properties, similarly the 57 degree wind angle presumes that 100% of the load is from internal pressures, which may not be the case for a motor/airframe combination.
@AstroCharlie I get what you mean, but let's face it : it would be a huge pain in the ass, and weaker in the end because the fibers wouldn't be as long due to limited cloth width.
Don't you think it would be a good idea to make a carbon fiber liquid rocket engine because carbon fiber absorbs the radiation and can stand lots of heat and cold like if it enters space? Don't you think?
Man I really wish you make a TVC nozzle for a large custom made solid rocket motor, be it a ball joint design or a bellow design, I would really love to see that and also it would be an Interesting challenge, i messaged JB also on Insta regarding this, didn't got a reply, hopefully you do this it'll be a fun learning experience
Fun fact, I had been looking for that smoke alarm since I bought the house. In one of the shop bathrooms they had a spare alarm in one of the drawers and it took me, no kidding, almost 2 years to find.
