by gCreate, published
The model was created in 3ds Max 2011 but due to the export/unit issues the model is scaled up by 2540%. You may have to scale down by .0393701 depending by your slicer software. In slic3r 1.1.6 it works fine.
An interesting note, the smoke is actually a particle simulation in 3ds Max which i used meta particles and then heavily modified as a mesh.
Update:
We recommend setting the "Solid infill threshold area" to be very small (1mm^2). This is the setting in slic3r but check your program. This will help the bottom nozzles to stop from breaking off. You can also screw them back on (which we did with the bronzefill) and then they will never come off.
We recommend printing this with a raft depending on your print surface. The model can be tricky to print until the 3 fins finally connect to the body of the rocket. After that it prints great.
We also recommend playing with different materials. This printed amazingly well in ColorFabb woodfill and bronzefill as well as various PLA filaments. It also prints great at half size if you want a mini rocket.
While this print doesn't require support, the center nozzle has built in support which breaks off after the print (if you want to put it on the smoke stand).