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Scratch built 3in booster with custom avionics bay. Aerotech H100 carrying 2 keychain cameras and a Perfectflite Firefly to 1784 ft!

My rocket team 3D printed our nose cone for our high power entry in IREC 2017 last summer and got all kinds of trouble from the judges (with no problems in flight smh) Doing that again this year, and coating it with an epoxy layer to prevent any heat issues. Depending on what speed and altitude...

Our next door carbon lab has a masonry saw with a wet trap setup. Last year with single layer prepreg sheets I used a dremel with a metal cutting bit along an outline I measured from OpenRocket, but couldn't get a very straight line or sharp corners freehanding it. Safety gear was ear muffs and...

Hi everyone, I've got a project in the works that's going to have carbon fiber fins for a high power flight (~10,000 ft on an M COTS motor). I had our school's composites lab lay up 2 sides of unidirectional carbon and sandwich a 1/4" cardboard hexagonal support before putting it in their...

Well the launch was a mixed bag. It wasn't as big as I was expecting, but then again I went to AirFest 2016 in Kansas last year, so I guess my expectations were really quite high. The DARS L2's and 3's were really easy to get along with, and even donated some of that insulation/ dog barf...

For anyone still following this thread, I'm just about done with the build and I plan to launch this Saturday (Sept 16, 2017) at the DARS high power launch site. Really liking how the whole thing came together.

Update from today's work: Got the tube painted and finished up the nosecone for printing, definitely a challenge getting the internal ribs the way I wanted them. I've attached the .stl file for anyone still interested.

That's definitely an interesting way of mounting the cord... I had previously just tied the lower end to an eye bolt screwed into the upper centering ring, tied a loop for attaching a quick link for the chute about 12-24" from the upper end, and taped the end of the cord to the inside of the...

I will be running a para cord shock cord through my tube to the inside tip of the nosecone, where I will epoxy it into place. I tie a loop in the cord just below the shoulder of the cone where I can quick-link my parachute cord to the shock cord. Here is my most recent OpenRocket file as well.

Ok here's the updated design; I added half an inch to the height of the fins which made the stability much better. I also changed the shape of the nose to a Haack series rather than a parabolic since I'm only going subsonic (Mach 0.64)

Sorry about that; the fins are through the wall with fin tabs between the motor mount centering rings.

Hello everyone, I'm new to the forum, so excuse any formalities in this post (and I'm open to suggestions too). I'm a AE student at UT Arlington, and I'm putting together my second attempt at a L1 certification rocket, hopefully with better results this year. The body tube is just a 33"...