Tiny Vector Thruster For Model Rocket - 1.75in OD

thingiverse

I quickly get excited about model rockets and decide to try making my own vector thruster. This is the smallest gyro-based vector thruster I've seen, and I'm determined to make even smaller versions. BEWARE: this project won't be assembled with just 3D-printed parts; it requires a lot of assembly work. Here's what I used: * Two 9g 5v servos * Six 1/8 or .125in diameter rivets (these will do the trick: [homedepot rivets](https://www.homedepot.com/p/Everbilt-1-8-in-x-1-4-in-Stainless-Steel-Blind-Rivet-6-Pack-835448/204868114)) * From these rivets, I used the rivet body as pins for all gyros * The control arms were made up of the setting mandrel from the rivets * The lower control arm connection points were made by shortening the rivet body and shaping the setting mandrel so it could pop into the control arm caps * All control arm caps were scaled many times to get a nice fit, but in the end, still required some super glue to hold the setting mandrel in place * I cut my servo arms and used the closest hole to the axle and used servo arm set screws as the ball joint for the control arm * Finally, I used spacers to make sure the gyro ring doesn't move around; you can even stack washers if needed. That's it – once you have all the parts, you can assemble it, but be warned: it's not an easy assembly. In the end, it was a simple one-day design and build.