Building a 400g Complete Rocket from scratch
Hello , I want to try building and hopefully completing this project of complete diy rocket as much as possible from scratch meaning custom electronics , body and motor , this does seem like a good fun project to me .
I'm currently in the design phase for an engineering project rocket and wanted to get some eyes on my specs before I start cutting materials. The goal is maximum altitude with a fixed propellant mass.
Key Specs:
* Propellant: ~100-130g KNSU DIY MOTOR , Targeting ~40-60Ns impulse.
* Target Weight: Around 350-400g (TOTAL LIFTOFF)
* Stability: Passive aerodynamic (fin-stabilized).
* Recovery: Mechanical piston ejector (servo-latched, elastic-powered). No pyrotechnics.
* Avionics: ESP32 + MPU6050 + Baro + LoRa telemetry + MicroSD logging+ modified camera
My biggest concerns/questions:
* Piston Ejection: Has anyone here successfully transitioned from pyrotechnic charges to mechanical pistons for apogee deployment? Any tips on seal friction vs. ejection speed?
* Telemetry: I’m planning on using LoRa for tracking. Any common pitfalls with vibration-induced resets on the ESP32?
Any other stuff I should be keeping an eye on ?
Thanks
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