Grid Fin - SpaceX Falcon 9

thingiverse

_Edit_: Wait, really? Nobody has posted a make yet? It’s been downloaded over 1000 times now! It sucks when the internet is a black hole. Make my day and post a photo! Replica design of the transsonic Grid Fin from the SpaceX Falcon 9 first stage booster! Mini passion project of mine– I was just so impressed by the complex geometry and design on this enormous part I had to design it from scratch. The full size one is the largest cast titanium part _on earth_ and is rumored to cost over _a million dollars each_! Print yours, paint it, and put it on your wall to help steer your imagination at supersonic speed Designed it in OnShape so anyone can fork, extend, configure, and download any version of it they want just in the browser. Used some of my favorite advanced CAD techniques like sweeps along 3D projected curves, extrusions to complex lofted surfaces, and large boolean subtractions. Should be configurable to any size while independently specifying the wall thickness allowing perfect 3D prints. ## Print one? Post a 'Make'! I'd really love to see how yours comes out! Make one for your wall, one for your friend, one for your model rocket.. then post the photos! ## Printing [](https://gfycat.com/vaguemeagerharvestmouse) Print it as the STL is oriented, standing up on end. Prints without supports. Small ones can be printed in less than an hour, my _max_ version took me 23h to print on my Ender 5 in HTPLA+ from Fusion Filaments with 1 perimeter and 18% infill. ## Wall mount You can also mount it on your wall with the optional pivot-arm and keep space history as art! [](https://imgur.com/a/7gqCDFJ) ## CAD Design Doing something cool with the design? Like cool CAD designs? Share the love! Send a message, post a comment or a _make_! Anyway, **[here's the CAD doc on OnShape!](https://b.link/gridfin)** [](https://b.link/gridfin) ### Post your makes! [](https://www.thingiverse.com/thing:4929705/make) Please post 'em! Really! Take a cameraphone photo of your SpaceX hardware in all its glory and show it off! Plus it really helps get this design out there to the world. ### Want a variation / label / engraving? [Telegram me](https://t.me/coolwheel)! _Designing stuff_ is fun but interacting with cool people and hearing about their adventures _is better._ I can generate any variation / engraving easily, [send me a telegram](https://t.me/coolwheel) and/or leave a comment and let's make your perfect version. I only ask that you post a make! If you'd like me to export a STEP file or something too, no problem. Message me.