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Hi All I've been away from this board for a bit - work, kids, COVID, crap ... it adds up, and all work and no play has made Barkley a very dull boy. No longer. When last I posted this board didn't even have a reliable way to post pictures. Please tell me this has changed. Building a min...

Apologies for the post, but a search turned up entries that didn't give me what I wanted. Does anyone out there have the .ork file for the Estes Mammoth? I'm looking to do some customization, and would rather not recreate the wheel.

I'll just put this here for the moment...

Haven't done a build thread in a while, but a skilled buddy of mine is in town, and a discussion over a few beer led to a plan for a full carbon, scratch built, M capable 77mm min diameter rocket. Plan is to build it now, test it with a K at an URRG launch in the spring, then maybe visit...

Hi All I've designed a nosecone av bay for my daughter's rocket, and have allthread running right from the metal tip through to the bottom of the nose cone shoulder. My intent was to put an Eggfinder in there, but the instructions say to keep it away from anything metal. Has anyone done it...

Santa gave my son Will an Estes SuperNeon for Christmas, and it went straight to the top of the build pile. I upgraded the MMT to 29mm and put extra fillets on the tube fins, but when the paint went on (Thursday) launch day couldn't come soon enough. Well, the Tripoli Houston launch was...

My son got an Estes Super Neon XL for Christmas, and I'm putting it together... but am wondering about an upgraded motor mount. I figure it should have a 29mm, no? Given that I wanted to keep things stable I started to take a stab at it in OR, and got the message "Tube Fin support is...

Does anyone know whether the CTI 29mm 1G motors have the black powder pellet in them? I want to cluster APCP and BP, which I know is a no-no, so I need to know whether a CTI motor will light with BP motors.

My 5 year old son designed this: To be clear: We have a motor mount eject system, a duck in it's own reentry vehicle (with parachute), and above that is a bulkhead of sorts that will contain the parachute. The theory is that the MMT will push the reentry vehicle while under thrust, then...

Does anyone else have issues with OpenRocket and Estes BP motors? The thrust and delay (even some diameters) aren't what's in the box.

I've designed a 38mm MD rocket that should be kinda fun, and given that I'm new to MD rockets I have a question. Assuming I set up the rocket for my CTI 38mm 6XL case, with the Aeropack 38mm MD retainer and the CTI spacer that fits it, is there any way to fly it with an Aerotech motor? In...

In October of last year I few my first ever rocket, and in August I got my L2. My 7 year old daughter has been with me every step of the way, and knows Newton's 3 laws of physics, can calculate center of gravity/pressure, the whole 9 yards. Her first OpenRocket design is a 29MM minimum...

Hi All I'm looking to make a minimum diameter 29mm rocket and am wondering about internal motor retention. I've already laid up the tubes, and the aft enclosure of my 29mm CTI case just extends past the glass, so an external retainer will really just extra windage. I've read masking tape is a...

So a few months ago now (!) I started to build a full fiberglass rocket from scratch. I designed it in OpenRocket, then made all the fiberglass components with .4 oz cloth and West System, so it was a true scratch build. Last weekend I went to the Tripoli Austin launch, and a suspected short...

Hi. I have an 808 video keychain, and have seen 3D printed sleeves for them that look like a lot less work than what I was thinking of making. Anyone know where I can source one? Thanks in advance.

Hi I'm looking to either make or source a metal tip for my fiberglass nose cone. What material will I need if it'll be going north of Mach 1.5? How difficult would it be to turn a block of that material? I don't have access to a lathe, but I suppose I could McGyver one. I wouldn't be...

I'm a newbie on RF and can't update my profile until I have a minimum post count, so here's a contribution to the forum that will allow me to ... gasp... upload a pic maybe. The basics: your mandrel must be hard, and the right diameter for the INTERIOR diameter of your component, and STRAIGHT...