It Takes Real Brains to Make Real Brawn
In the world of 3D printed firearms, bigger isn’t always better. Full-sized cartridges come with full-sized problems (and not-so-complete appendages), so research and development has focused largely on cartridges on the other side of the 30-caliber split. Of course, on the rare occasion that some intrepid dev does manage to wrangle a battle rifle into a plastic shell, its definitely a cause for celebration.
The CETME 2077 is AWCY?’s testament to the versatility, ingenuity, and longevity of this community, combining untold hours of design, development, and testing work in order to create a project truly in it’s own league. I’ll warn you, this one is not for the feint of heart nor the mechanically challenged: it’s easy to admire the popular kid at school, but much harder to actually get to that place yourself.
In The Wild
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CETME 2077 Technical Specs
The files are designed to accommodate PLA+ as a minimum, with extensive testing also done in Nylon. Documentation recommends specific print settings. Durability may vary depending on selected print settings and printing materials.
Documentation for this release is extensive, nearly 60 pages covering every stage of the build process, including optional modifications and common failure points. The design has a welded and weldless option for assembly, and makes use of standard CETME parts.
Final assembly makes use of a hydraulic press for the barrel, trunnion, and triple tree, and though this can be substituted, it is highly discouraged.
CETME 2077 Parts List
Components
- Complete CETME C parts kit
- CETME C barrel
- ⅝” x 24 flash hider
Hardware
- 3 – ⅛” x ½”x 12” mild steel bars (1018 or A36)
- 1 – 10-24 x 24” threaded rod
- 5 – Music wire compression spring (1.5” L x 0.48” OD x 0.396” ID)
- 2 – Quick release pins (¼” D x 1-⅞” L)
- 4 – 10-24 steel nuts (or 10-32 nuts for weldless)
- 1 – 5mm CETME/HK G3 barrel pin
- 1 – Brass rod (4” L x 1” D)
- 2 – 8D x 2” nail
- 1 – 6-32 x 1” machine screw
- 1 – ¼-20 threaded rod (3′ L)
- 2 – ¼-20 nuts
- 1 – 1/4-20 x 2” bolt
- 4 – 3 x 50mm machine screws
- 4 – 3mm heatsets
- 2 – 10-32 Clevis end adapters (weldless only)
- 2 – 10-32 steel nuts (nylock recommended) (weldless only)
Tools
- 3D Printer with build volume larger than the Ender 3 (>CR10 for single-piece receivers)
- Dremel
- Hacksaw
- Drill press
- ³⁄₁₆” end mill
- #9 drill bit
- 7mm/”i” drill bit
- #7 drill bit
- #10 drill bit (weldless only)
- Welder
- Hydraulic press rated 12 tons or greater
- Hammers
- Punch set
- Screwdrivers
- Allen/hex key set
- Propane/Butane torch (recommended)
- Needle-nose pliers
- Metal pipe (¹¹⁄₁₆” ID)
- Bull-nose cutters
CETME 2077 Build Instructions
Accept no substitutes. The CETME 2077 is the true king of the full-sized cartridge, bar none. Download and build one today!
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