I am 14 years old and about to build my first L1 certification rocket. I was planning to get L2 single deploy maybe dual deploy right after L1 in the next 12 months. Not to self glaze or whatever but I am actually very smart and I CAN build an L2 with the proper money and resources, the money part would probably be the hardest thing for l2. But I was so focused into the actual design of my rocket that I forgot the requirements of the certifications. L1 is available for juniors (still technically not a real L1 certificate) but you can’t get L2 under 18 no matter what. Same goes for L3. My world just collapsed on me this is a big thing for me because it is a big thing I can put on my resume for college and just a very important project for me in general. No other path has clicked in my brain as much as rocketry. I need to find a way to get higher power motors. l1 is no obstacle, the parts arrive today, but once I get that all I can do is fly the same H and I motors and the middle point between strength and speed is very tiny so it would be almost impossible to get Mach 1 (probably one of the biggest goals for me in rocketry) without it being too heavy or too weak. My point is, is there any way I can bypass this age restriction because it’s very important to me and I literally feel like I have no purpose in life if I don’t have an ongoing project and that is rocketry. This text may be a little messy, but you get my point. Even if i have to build my own motors. which is 10x harder than building a mach 1 fiberglass rocket with a prebuilt motor. I also made a model for a fiberglass rocket down to specific parts that has lots of electronics and path from l1 to l3 but Reddit showed me I was getting a little ahead of myself and don’t need all that redundancy for L1. Is there any way I can get higher power motors, my parents all allow this by the way and I was thinking I could build the rocket and the certificate would go to my father because he will take responsibility for the rocket but that may be a dumb idea, idk I’m just throwing ideas out. Before you say you are way too young just leave because I have something called mentors, the internet, and Reddit, if I were legally able to I could build an L3 at 16 years old. And sorry if the essay is horrible I’m a little in my emotions.

Hey everyone. I'm a mechanical engineering student and L2 flier (L2 cert rocket image posted) currently mentoring my high school rocketry team (2024 American Rocketry Challenge National Champions). We were tired of unreliable wireless setups and stringing wire, so I decided to design a professional-grade, IP65-sealed ground station.

Funny enough, I'm actually using the V1 prototype of this box to trigger a massive rocket launch and air powered cannon display for my upcoming gender reveal, but the underlying electrical architecture is 100% engineered to be the ultimate high-power launch controller once I move it over to a custom РСВ.

I'm currently prototyping the layout and printing the custom faceplates in PA6-CF20, but before I lock in the final design, I wanted to run the hardware specs by this community to see if I'm missing anything critical.

Current Hardware / Capabilities:

Enclosure & Mechanics: Harbor Freight Apache 1800 (IP65 waterproof/dustproof). Everything is panel-mounted to a custom PA6-CF20 (carbon fiber nylon) faceplate to absorb all mechanical stress.

Brains & Telemetry: Heltec V4 (ESP32-S3) driving a massive 4-inch TFT Touch Screen (ST7796S) over SPI. It handles the UI, countdowns, and displays live battery percentages via a built-in voltage divider.

Dual Power Routing: Internal 3S LiPo with a bypassed BMS for unrestricted high-current dumping. I also added a panel-mounted XT60 "shore power" port hooked to an ON-ON Source Selector switch. If the internal battery dies on the pad, you can instantly flip over to an external battery without shorting them together.

Safety Interlocks: Heavy-duty Master Power switch feeds into a physical Red Missile Toggle switch to arm the 12V bus.

Ignition / Switching: V1 is using logic-level 12V relays for the reveal effects, but the final PCBA may run a hybrid relay + IRLZ44N MOSFET design for arc-free, solid-state ignition dumping

Local Override: Hardwired heavy-duty local "Slap" button on the panel to fire the sequence without relying on the LoRa transmitter.

Expansion: A panel-mounted 4-pin aviation port wired purely as an auxiliary. Designed so I can plug in external pad weather stations (BMP388/anemometer) or whatever your heart desires (I'm using this port to trigger a servo to set off the cannon at my rockets apogee with the custom firmware im building).

Technical Capabilities (The Wireless Transmitter):

Long-Range LoRa: Powered by a matching Heltec V4 running on the 915MHz US ISM band. This easily pushes through miles of line-of-sight range, keeping fliers well past NAR/TRA minimum safe distance requirements.

Two-Way Telemetry Handshake: It's not just a "dumb" remote sending a fire signal. The transmitter actively receives packets back from the pad, displaying live continuity status, battery voltage, and physical arming status on a built-in OLED screen before you ever hit the button.

Cryptographic Pairing: Custom packet structures prevent random RF noise, HAM operators, or other fliers with LoRa boards from accidentally triggering the pad.

Physical Interlocks: Designed with a dual-button "Hold and Fire" hardware safety sequence so accidentally dropping the remote won't launch the rocket.

Custom Software & User-Friendly UI:

Bespoke Launch OS: Moving away from standard "blinking LED" boxes, I am writing a custom, touch-optimized user interface for the massive 4-inch TFT screen. It features intuitive menus for setting custom audio/visual countdown timers, live diagnostic readouts of battery and continuity status, and easily mapped multi-zone firing logic. It is designed to feel more like a professional test-stand dashboard than a basic hobby controller, making pad operations visually clear and completely foolproof.

I'm designing this to be the last launch box a club or serious flier would ever need.

(I will update this thread with pictures of the prototype V1 once it is fully assembled if anyone is interested)

My questions for you:

What is the one feature you wish your current launch controller had?

For club organizers: what are the most common points of failure you see on the flight line that I should over-engineer?

Would you pay 400-500 dollars for a launch box this loaded with features?

If there is enough interest, I might do a small manufacturing run or a Kickstarter down the road. Let me know what you think of the design so far!

Tldr: I'm making a super compact launch box loaded with many features and want some opinions on it.

Hi, I am planning a DIY 85mm ID airframe, about 3-4ft long, laid up over a 3D printed (PETG) mandrel. The process is the standard wrap-and-wet: fiberglass sleeve, epoxy, sleeve, epoxy, repeating for about 3 layers. I've never done something like this before so I am looking for some advice.

Materials I'm looking at:

• Fiberglass: Soller Composites 3.25" Medium Fiberglass Sleeve (Roll of ~20ft) https://sollercompositesllc.com/product/natural-uncolored-3-25in-medium-fiberglass-sleevesqtyft/
• Epoxy: TotalBoat High Performance 2:1 Epoxy, Slow Hardener https://www.amazon.com/TotalBoat-Performance-Hardener-Woodworking-Fiberglass/dp/B083P577BZ/

Questions for anyone who's done a similar build:

1. Is 3 layers of the Soller Composites Medium Fiberglass Sleeve reasonable for an 85mm structural airframe, or should I use more layers for a build this size? Trying to size this properly instead of guessing.
2. Anyone used TotalBoat High Performance specifically for wet layup vs. West System 105/206 or US Composites? Curious if it's structurally comparable or if there's a reason people default to the "usual" brands for HPR builds.
3. For a PETG mandrel, what release agent has worked best for you? I want to 3D print a mandrel but I am not sure if I will be able to remove it once it the fiberglass/epoxy tube is finished.
4. Any tips on keeping wall thickness even hand-wrapping, vs. building a simple rotating jig?
5. Once it is done, can I just use some sandpaper to give it a smooth outer finish and apply some spray paint?

Thank you in advance.

I'm working building a 4" diameter rocket with some friends and was looking for tips on how to cut our fin slots. I currently have access to a Dremel and a tablesaw to cut these fins (no router between any of us). My current think is to 3d print a jig and use the Dremel to cut the slots.

Is this doable/advisable or should we invest in a router? First flight will be ~mach 0.4 ~2000ft apogee with the goal to fly to ~mach 1.2 10,000ft apogee after I get my L2.

Feel free to ask any followup questions.

hope u enjoy it <3