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74mm Parachute Ejection System

74mm Parachute Ejection System

thingiverse

NOT TESTED. This device will deploy a parachute for a 74mm airframe model rocket. It requires an SG90 or similar servo actuator and a less than 6mm outer diameter spring with less than 11mm max load length. Two attachment points for M3.5 screws. Recommended spring: https://www.mcmaster.com/94125K201/ (A pen spring can also be used, but the spring hole needs to be filled with something so spring can compress more). Sanding may be required.

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