Any plans to continue the liquid propellant rocket engine?

@barmetler

25 күн бұрын

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.

id recommend using peel ply instead of the fiberglass. you can remove it later and it does pretty much the same thing to the tube.

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?

@EPIC.Engineering

6 ай бұрын

I checked your channel out it's amazing.

That seems incredibly easy to do

@SpaceArachnid

2 ай бұрын

Until you try it...

mould release!

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.

where did you buy heat shrink tape?

Can u show us also ur DIY furnace?

How about a 90°degree part???

Could you potentially use this method to make composite SRM casings? Or is filament winding the best way to do that?

@AstroCharlie

6 ай бұрын

Absolutely! The winder is probably a better idea as this manual method is a bit tedious, but it totally works.

@shere_kan8329

6 ай бұрын

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)

@AstroCharlie

6 ай бұрын

@@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.

@shere_kan8329

6 ай бұрын

@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.

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

6 ай бұрын

FAR Trip!

@joshsickles1163

6 ай бұрын

@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.

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

@AstroCharlie

4 ай бұрын

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.

@AntonKosiaraPedersen

Ай бұрын

Try looking at Easy Composites KZread channel. They have test of carbon fiber tubes.

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

which material is better for the rocket body; aluminum or carbon fiber?

@AstroCharlie

6 ай бұрын

Carbon fiber is lighter and easier to work with in my opinion.

So you made a carbon fiber centitube 🙃

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?

@EPIC.Engineering

6 ай бұрын

And if it gets to hot you can add like a cooling system like on most rocket engines?

please change your smoke alarms batteries! I can hear them beeping in the background.

@AstroCharlie

6 ай бұрын

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.