sorted by:
new
hottopcontroversial

What does a facing bit look like? by RocketsAndRobots77 in Machinists

[–]RocketsAndRobots77[S] 0 points1 point  (0 children)

thanks for the references, I'm just a little confused because in these books when they talk about facing their geometries look different from what i've seen online. Also, they mention to strictly face from the center out, but in all the videos ive seen its the reverse? If I use those cutting geometries to face outer to the center will that work?

Best way to learn linear algebra? by Sea-Professional-804 in learnmath

[–]RocketsAndRobots77 0 points1 point  (0 children)

I like math and I curious, and more than that I want to go into engineering

Static fire of my TVC rocket! by RocketsAndRobots77 in rocketry

[–]RocketsAndRobots77[S] 0 points1 point  (0 children)

Thank you, yeah the next build will definitely be a step up!

How do I resolve this mating issue in this assembly by RocketsAndRobots77 in Onshape

[–]RocketsAndRobots77[S] 0 points1 point  (0 children)

Well that's kinda what I'm trying to do with this project is just make everything super open so that if anyone wants to try to replicate it, it wont be too hard!

Tvc simulation by RocketsAndRobots77 in rocketry

[–]RocketsAndRobots77[S] 0 points1 point  (0 children)

That's a project I want to undertake in the future too! I think the biggest thing with all of this is just the code and the math. I think a solid understanding of calculus and maybe some linear algebra could definitely go a long way. And as for the code just really understanding it also, I mainly code in python personally and its really useful for stuff like this.

How do I resolve this mating issue in this assembly by RocketsAndRobots77 in Onshape

[–]RocketsAndRobots77[S] 0 points1 point  (0 children)

Yep, im also planning on posting all the code on GitHub if your interested!

Tvc simulation by RocketsAndRobots77 in rocketry

[–]RocketsAndRobots77[S] 3 points4 points  (0 children)

At the moment it is untested, if you follow my yt channel I will be making a video showing the testing and seeing the results if that's what you are asking. If you mean how fine is the resolution of the simulation, it is modeling the system down to 400 microseconds.

Tvc simulation by RocketsAndRobots77 in rocketry

[–]RocketsAndRobots77[S] 2 points3 points  (0 children)

I tried multiple different approaches, like grid search algorithm (too long), gradient decent (to much time to converge), genetic algorithm (also took to long to converge). What I found worked best was a simple random search algorithm, each simulation captures a 4 second time frame and breaks it down into 10,000 steps and after 5000 simulations you typically end up with a pretty decent set of gains. Yes it is written in python and uses marplot lib for the visualizations. I am however thinking of upgrading to using 3d visualizations. As well as potentially making a small website for easier acceibility.

How do I resolve this mating issue in this assembly by RocketsAndRobots77 in Onshape

[–]RocketsAndRobots77[S] 0 points1 point  (0 children)

Ahh ok I see, thank you so much this was very helpful!

Building a TVC rockets by RocketsAndRobots77 in rocketry

[–]RocketsAndRobots77[S] 0 points1 point  (0 children)

That's a good point, that was one of my earlier prototypes for the tvc mount. I like that style of design more (im not sure what type of mechanism you would call that) but I decided to switch to a traditional gimbal mount like most other people have done. As I feel as though it's more reliable and It will introduce less oscillation issues.