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I've been wanting to do a 2 stage black powder rocket for awhile now, both minimum diameter and with the coupler/transition, nosecone and fins all 3d printed from ABS treated with acetone vapour to make it smooth and glossy. Seeing as the rocket sims to a little over 1000m (3000ft) I figured it...

I got kinda bored on Friday night, so I drew this up - it actually ended up taking me about 1.5 days to do. If Arnold Schwarzenegger played Frisbee, this is what I imagine he'd play it with. It's a 800mm diameter, carries 12x D or E black powder motors to spin it up, and can take up to 6x...

I've been wanting to learn how to do vacuum infusion for quite awhile, I know the theory but I've never seen it done in person or in a video before so I had some ideas of what to expect but not really any knowledge of how those theories worked in practice. I've done a lot of wet layups which...

I'm working on a new rocket design, ideally my parachute bay is going to be less than 100mm long, that includes the ejection charge and eye bolt. I can pack the parachute I want to use in less than 50mm, perhaps as little as 40mm length in the 38mm tube. The rocket needs to be drogueless - it's...

Does anyone have a drawing or dimensions (even if they are just sketched on a piece of paper) for an aeropac 38mm adapter for CTI? ie: https://www.apogeerockets.com/Building_Supplies/Motor_Retainers_Hooks/Minimum_Diameter_Retainers/Pro-38_Delay_Ejection_Closure_Adapter Trying to figure out...

I've been struggling for inspiration for a new rocket (mostly due to lack of time/funds). When a friend borrowed one of my 29mm CTI cases to finish the retainer on his rocket- I figured I should probably build a rocket for the cases myself - having had the cases for a year or so and yet no...

I'm working on a rocket idea... 4" bluetube body, PML nose cone, 54mm motor. Pretty simple to build, not too big and totally overbuilt - its not going to break any records but will be solid and fun to fly hopefully. I feel as though it's missing something aesthetically though, I just...

I'm starting to build my Tomach, 54mm minimum diameter fibreglass rocket. I'm going to build this as the manufacturer recommends for once, except using Techniglue R5 as I can't source Cotronics or Aeropoxy - and i'll be doing tip to tip carbon with 94gsm carbon cloth on the fins. So far...

Rocketry season is approaching again here, and with several new rockets I want to fly I'm looking for parachutes. I thought its about time I try making my own. I've read most of the threads I can find on here about *making* the chutes however I'm struggling to find any resources on designing...

Hobbyking have just listed masking tape for modelling, it looks a bit like the tamiya stuff from what I can see. Hopefully this will be a high-enough quality alternative to the tamiya stuff which costs $5-20/roll :( 6mm Modeling Masking Tape 9mm Modeling Masking Tape 12mm Modeling Masking...

My fiancee is looking for a new rocket to build and she wants something fast, as fast as she can go on L1. She enjoys the flying rockets, doesn't mind the building too much as long as it doens't get too complex but I have yet to get her near rocksim or open rocket so designing a rocket for speed...

I havent looked at the cost of it, however I came across Technora as a possible rope for shock cord. https://www.teijinaramid.com/aramids/technora/ Pelican rate their 1/8" kevlar to 1,500 lbs. and 0.65 lbs/100ft. 12-Strand Single-Braided KEVLAR Specific Gravity 1.44 Elongation at Break...

So i've been planning to build a little rocket that will be pretty cheap to launch and not go too high. Originally, I was going to do this properly with milled VK airfoils on the fins and tip-tip carbon, however some plans for that launch were canned. Now the idea is something I can pretty much...

I've been trying to think of a better way to setup an AV bay than how I've been doing it with the two threaded rod rails running down the AV bay. I don't have a problem with it on 4" and larger rockets, but getting down to 54mm airframes with redundant dual deployment seems to be overly heavy...

I haven't designed a launch tower before, however seeing as i'm designing a rocket for supersonic I figured I'd go all out and get rid of the launch tower - as I'm sure it's been slowing me down in the past. If anyone would care to take a look at my tower design and give feedback I'd be much...