I am Florentin (or just Flo), a computer science student and the owner and creator of this website!

I absolutely love everything spaceflight related and use a lot of my free time to design MOCs (My Own Creation) of rockets and everything related to space!

Currently I am working part time as a software developer while studying computer science, but in the future I hope to work somewhere in the space buisness or at a space agency!

Other than spaceflight and rockets, I am also very interested in science, astronomy, politics, programming (as you can see by this website :D) and of course: videogames!


If you have any questions regarding my MOCs or this website, feel free to contact me!

My Collection

While I don't have the space nor the money to build all of my MOCs, I have built some of them!
If you also have built any of my MOCs, be sure to let me know and send some pictures! I'm always happy to see people building them :)

A part of my collection of rocket mocs

A part of my collection of rocket mocs.


There are many programs to design MOCs with. The most popular ones are Bricklinks Studio, Mecabricks and Lego Digital Designer.
I personally use Studio as it has a user friendly user interface, many useful features and is the most intuitive one to use, though it still has also has a lot of stuff to improve.


If you have any question regarding my existing MOCs or have ideas for future ones, feel free to contact me anytime!

An .io file is a digital file which you can open using Mecabricks or Bricklinks Studio program. It contains the digital model of the MOC. In Studio it can also be used to make instructions out of the MOC.

If have made instructions for my MOCs I will upload them as PDFs together with the digital io file. If one of my MOCs doesn't have PDF instructions yet, but you really would like to have them, just contact me and I will make them!
Many of my MOCs can also just be build by looking at the io file, though PDF instructions of course are more straightforward :D

I mostly render the pictures of my MOCs using the inbuild rendering engine in Studio. If I want to have something more complex I export the model from Studio and use Blender.

This websites source code is freely available on GitHub!

If you have any questions or ideas for improvements regarding this website feel free to contact me!
The 3D viewer and the partslist export feature use part lists and brick information from LDraw and Rebrickable.

Terms of Service

All designs, files and images on this website are created by me and shall not be redistributed and not be used for any commercial applications without my permission.


This website provides free digital files and instructions for spaceflight related MOCs out of building blocks!
This website doesn't use ANY cookies! Cookies are only good when I am eating them.