Modular 1/25 Scale A4/V2 model rocket

The A4 rocket was developed by German scientists, including Werner Von Braun, during the 1930s and early 1940s. It was adapted for use as a weapon by the Nazis in WWII and renamed the V2. After the war it was used for research and helped pave the way for space programs in many countries.

This model is hollow with 1.2mm thick walls, allowing for two extrusion widths of .6mm. The Slic3r settings for some of the parts use an extrusion width of .63 to ensure good bonding between inner and outer walls. I used the Slic3r engine within Repetier for this project.

The entire rocket is 22" tall and 2.75" in diameter. The mid-section and fin sections are each about 7.6" tall. When printed at 100% scale, the fins fit within a print diameter of 6.2", just fitting within the print volume of an Orion Delta. Quarter-turn bayonet fittings connect most of the parts. The groove in the bayonet fittings includes a locking bump that will help lock the parts when turned 90 degrees. Index mark