Thingiverse
74mm Parachute Ejection System
by Stevato05
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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.
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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