Is this 3D model free to download?

Yes, Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by Oleg_Boltonov, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit 3D printable model by Oleg_Boltonov

Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit photo 1

Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit photo 2

Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit photo 3

Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit photo 4

Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit

Source: Thingiverse by Oleg_Boltonov

The Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit is a free printable 3D model from Thingiverse by Oleg_Boltonov. Replacement bottom part for the Spacex flying rocket model kit. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

34 saves Source: Thingiverse Updated 2026-10-03 License: CC-BY-NC-SA · non-commercial Category: Other

Tags: 18mm Engine, Falcon 9, flying model rocket, spacex rocket

About this model

Replacement bottom part for the Spacex flying rocket model kit. It is designed to carry two 18mm engines. You have to fix them with tape. Two versions available: a) twin_engine.stl ........... simple replacement of the original b) twin_engine_landleg_01.4.stl ............ if you download the legs from you will be able to attach the legs to my design and fly it, as the fins do not have to go :-) Not flown yet, report is comming soon, as this is part of our aSpirM 3 prep... ( You can use the original provided fins - depending on print quality the slots for the fins have to be cleaned a bit. I used to trim the mounting side of the fins a bit. After attaching, they sit in the slots like pros (without any glue). engines_slv.stl ........ simulated engines, for which i am not proud of.

Frequently asked questions

Is this 3D model free to download?: Yes. Falcon9 18mm Twin Engine Kit for the SpaceX Flying Model Kit is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Oleg_Boltonov.
Who made this model?: Designed by Oleg_Boltonov, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.