This is my own recreation of the Viper launch tube and prep area. There are only 13 distinct parts. Some parts are printed many times and some are mirrored.
I purchased brass tubes from Hobbytown 7/32" diameter and 3/8" diameter.
I am not done printing all my parts but anticipate having it all done by 2019...
This was designed to display the 1/32 scale Viper models.
No supports required. All the pieces were sized to build on my Ender 3 220mm X 220mm bed.
More realistic ladder added
I added a tab to the launch sled so the 1/32 model Viper will sit there using the mounting hole on the bottom of the fuselage.
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/2dVybKkuZLA
12-1-18 Nearly all the pieces are printed. 2 more floor pieces printing now. The brass tubes are 36" and pricey so I decided to cut at 18" for 8 total tubes. The inner chamber will be 16" so there will be 2" extruding out the first entry port. I will put one prep area support on the tube and glue the other 3 down to the floor. Should look ok and will post more pics! :)
If I had to do again, I'd scale up maybe 10% but I like the results as it won't take up too much room. If you do scale up, watch the holes size doesn't change much as those were just the right size. I did ream the holes a bit with a dremel to make it easier to slide onto the brass tubes.
To glue the floor panels together, I am printing with a 8 mm brim and I leave it attached so I can glue one floor panel to another's brim with epoxy. The slight unevenness is minimal. See the picture attached...