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Hello, long time no see!

I've had a very busy winter, and I haven't been able to do as much programming and etching as I would've liked (gCn, I'm looking at you). The weather has been too cold to etch effectively and I've had my weekends filled with coaching ski lessons.

Now that winter is slowly fading, I can get back to whats important: Rockets!

If any of you need a refresher from last year:





Anyway, I have a better idea for my rockets. Instead of just building more and more ridiculous things for the 0x5, I have an actual goal in mind. I want to create a guided rocket using off the shelf parts.

It will work like this. An arduino or arduino-like board will be in the body, serving as the brain. It will be powered by a battery and control canards, most likely 4 of them. I plan on using servos for this. Also included will be a 9DOF board, and hopefully a GPS and maybe a small bluetooth adapter if I can find one small enough (so I can build many of them and program them after the fact).

This project will go in hand with my 3dof launch pad I'm creating (I have the circuitry, I just need to build it). This pad will launch anywhere from 1 to 9 rockets from launch tubes or rods, which may or may not be guided.

I have a new 3D printer I got a few days ago just for this project. Here's the preliminary test fit:



I'll fix the dimensions later to get the servos just right. This is a test bed of sorts right now, the final product will use smaller servos and use a smaller body. Large rocket motors aren't cheap!


I feel very confident that I will be able to at least make this have a rocket go straight up and stable; I work heavily with head tracking here at work and I have the resources to help me out with the code should I hit snags.

Tell me what you think!

Also, I have no clue how I'm going to do the parachute part of the rocket.
I think this is a very cool project! I've always liked remote controlled things like helicopters, drones, boats, cars, and whatever else there is, but a rocket is something new. I always though that they'd be too fast to control, but I don't know exactly because I've only used rockets that go up, and come down with a parachute. For the parachute, you can probably get a small one online, and then attach it to the nose of the rocket, and have it come off when it starts coming down. The rockets I used weren't very good, but the parachutes worked. The top part popped out, and the parachute came out. Since looking on amazon didn't yield any good results, I'd go with making one out of bags and such (plastic bags, trash bags, cloth, etc.). The part you have already printed is really cool, and I have no doubt that the end result will be even cooler than that! Good luck!
jcgter777 wrote:
I've only used rockets that go up, and come down
Play KSP or do anything else with rockets, you notice they tend to go up, down, left, right, at you, through the map, and (sometimes) to light speed.

As for the topic, this is super cool! I've never had the resources to build my own rocket from scratch. Good luck!
I printed the second version of the body last night, but its still a little big. I will cut it down this evening, and possibly try printing with ABS. I can get more PLA, but my work has an excess of ABS we no longer use.

I'm actually using a program called Art of Illusion https://sourceforge.net/projects/aoi/ to model in and then use Cura 3.2.1 to cut the exported STL to gcode and then the Repetier software to print. I use AoI because its what I've used for 3d modelling since I was like 9 years old. I know I should use something else like solidworks, but the learning curve I feel is so steep.

The electronics should be arriving this week.

I actually got in contact with a guy who did a very very similar project and he told me how he got power to the system (he used a 7805 regulator on a 9 volt battery). I've been reverse engineering his photos to get my rocket body to look like his because I feel that his fin arrangement is ideal (Two staggered sets so the servos across from eachother can be closer)

Potential boards to use:


The largest round board is the Flora, which is too large.

The smallest circle is the LSM9DS0 9dof chip
The middle sized circle is the UART GPS module

The narrow board is the Arduino Nano that my friend had in his backpack ("I buy them in bulk from China, I flash them myself. You can keep this one").

I think I'll use the Arduino Nano because it is running the same 328 chip that the arduino uno does, so it should be completely compatible with my test setup of 4 servos and an uno.

I may switch to a pyboard because it has 4 dedicated servo ports
  
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