I'm sorry to keep SpaceX fans waiting so long. Finally designed a Super heavy booster. I've come to some fuzzy conclusions between the concept model and the prototype SpaceX is currently building, and based it on the prototype, adding a little bit of concept form. However, at the request of many customers, I designed a perfect prototype Super heavy booster 4 by adding a fixed grid fin.

Grid fin can be printed by selecting the movable type of the concept model and the fixed type of the current prototype.

If you choose the fixed grid fin, only Starship SN11 can be connected. Starship prototype SN11 - https://cults3d.com/:4025569

If you select the movable grid fin, you can connect the Starship Crew and Starship Cargo that I previously designed. Starship Crew STL - https://cults3d.com/:2925998 Starship Cargo STL - https://cults3d.com/:2952692

The part that connects to Starship is weak, so please be careful.

There are 4 long and 8 short pipes attached to the side of the rocket. When attaching this pipe, attach the long pipe to the bottom of the long concave groove first, and then attach the remaining short pipe to the remaining concave groove. Short pipes should be attached with the thick end facing down (engine). Designed by GOODesign.

Please check the video for details. Fixed grid fin prototype booster 4 Printing and assembling video - https://youtu.be/NYhs1m37Db8 Printing and assembling video - https://youtu.be/roBf1ls1EMQ

Scale 1:144

Biggest part size X : 239mm, Y : 98mm, Z : 172mm