Video Description

Sapphire is my most advanced amateur rocket. It has a custom airframe, flight computer, datalink protocol and more. The key to its maneuvering capabilities though are in its custom Control Actuation System. This is the custom servomechanism that lives at the back of the vehicle and moves its four control surfaces. I designed and printed my custom CAS with the Formlabs Form 4. You will be seeing more of Sapphire soon, and make sure you check out Formlabs Form 4 if you need engineering-grade parts in professional resins. Check out the Formlabs Form 4: https://formlabs.com/3d-printers/form-4/?utm_source=youtube&utm_medium=referral&utm_campaign=lafayettesystems-f4-2025-04-23-global I do not provide CAD or Code for my projects. Also please ignore the cool rocket launch Audio between 0:40 and 1:02, that was an editing mistake If you are just getting into active control systems or amateur rocketry, make sure you check out my step-by-step build videos on my mid-powered airbrakes rocket: https://www.youtube.com/watch?v=tmt221BombM&list=PLfpWLkEqF5zCWC6zCVDKk0SvZz1gEdGHp 0:00 Intro 1:08 Background 2:13 CAS Overview 4:18 Formlabs Form 4 4:56 Actuator Design 5:55 Resin Types 7:23 Printing Orientation 9:26 Getting Worms Right 9:53 Actuator Design 11:03 Material Results 13:10 Up Next