Wait I have a more important question. If the rocket flies really high, is there a chance the WiFi will disconnect? What is the range?

Thank you! I do software professionally (backend), but self-taught in electronics. I don't sink Wi-Fi is a good down link for having live data from the rocket, I would not expect it to go 50m+ reliably, but who knows? Maybe I will test it when I will finish the rocket. Anyway. I don't need live data during the flight, and telemetry could be just stored on a flash chip. Proper live data requires a more suitable radio and so a base station / receiver. I would like to use just a phone to control the rocket.

@@Positive_Altitude Thank you for the reply. Best of luck with your project, I'll keep an eye on it!

Rust has a different philosophy of managing the memory. Compiler enforces a lot of special rules that you need to follow to make your code compilable. But if it compiles, it very unlikely that you have a memory usage mistake in your code. As the result, writing code is harder, but debugging is easier. Common mistakes like memory leaks, segfaults, deadlocks, race conditions etc. are avoided. Also it is affected by elements of functional programming, widely used lambdas, good type system. Another important thing is proper macroses (with ability to fully transform token stream (abstract syntax tree)) . This allows to create amazing extensions to the language. For me the great benefit is that it works great for everything: PC app, server backend, embedded, frontend. It is the only language I know that is at least "good" for all these applications. So I can share/reuse my codebase and make very straightforward integrations. Unfortunately I would say that it has steep learning curve, and there are decades of C in embedded, so nobody is running to switch to Rust. But imho it is excellent for embedded.

Glad to hear that! Cheers!

TPU should work, but I don't think that they will fit to this design, it has large hub in the middle, so the tire should be thin, there is no room for spring tire.

ес оф корс

Yeah someone here mentioned a similar technique.I think it's a great idea and it could be very simple. For example using a regular JST connector as a plug and offset holes a little bit to create some tension. Maybe that will be my method of choice going forward. Thank you!

Hey, thank you! I am working on a new TVC rocket now that will use flight computer very similar to this one. I finished a new parachute system recently and will make a video about it soon. Other parts will be covered later. Cheers!

@ Yea? And its going to be free? I wanna built a rocket but am never was programing before so do you share the code too?

@@wexx1k yeah, I am going to share everything covered on this chanel for free. Including code. But it will be "Rust" programming language which is quite unusual :)

Thank you. Yes, I tried lithium-based grease. It makes it quite and smooth, but adds some no-load friction. I mean, it will not free-spin like in the video. But it should help to reduce wear.

Hmm. I think it will still mostly roll even with 4 points of contact. It will just roll in a way that it's rotation axis oriented somewhere in between. Hard to put it into words :) Anyway, bearing design with 4 points of contact is very common. Look for "4-point angular contact ball bearing" for example. So it is a bit less efficient, but mostly because of some extra angle between load and contact point. I don't think that there will be significant sliding. In fact even if you roll a ball between two parallel flat surfaces, the rolling axis doesn't have to be parallel to these surfaces, it could be tilted and the ball will still roll just fine. I think it creates some extra friction, but it is not sliding. This extra friction will be similar to friction that "spinning top" has, just a little bit of that. Hope it makes sense, it's so hard to explain without showing/drawing. Thanks for your comment :)

Спасибо! Можно на амазоне или алиэкспрессе "steel ball bearings" пластиковые тоже можно посмотреть

да

:)

Can you explain what do you mean exactly?

@@Positive_Altitude At 4:57 the surfaces in contact with balls meet at angle, not rounded. Is it intentional? I would expect the contact surface to follow the shape of the ball, i.e. be round

​@@positron96if there will be grooves it will be not possible to assemble this way, because the cage with balls will not fit in the gap any more. Though it is possible to add half-grooves on opposite races. I mean the corner between main and auxiliary races could be rounded.

​@@Positive_Altitude yes, I think I mean rounding the corners

I would say that it's very fine surface. I also tried to make the steel rod surface more rough by sanding, but it didn't make a difference. Somehow the drill bit is just much more "grippy", you can clearly feel it with your hands when inserting the pin. There should be some cool physics :)

Thank you for the feedback. Cheers :)

Thank you!

Nvm, I am stupid, just going to make the inner part thicker and the screw holes will need to go all the way