Low Bypass Turbofan Jet Engine
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
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Revision 1 (file Rev_1.zip) see second picture
added combustion liner (Single Annular Can), fuel nozzles and turbine stand (in three pieces)
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This is a first step study around a working 50 Kg thrust engine, a simplified model aimed to study the assembly sequences, volumes and components' layout in general. Once completed it will sit on my desk as a display model and the second design phase will include the theoretical studies outputs.
In order to decrease the complexity of the model you'll notice some conceptual mistakes (such as the bearings directly mounted on hot components like the HP and LP nozzles, compressor disks shapes and approximate aerodynamic profiles) but besides that, the model is created reflecting the actual design of the full size/working engines.
The combustion chamber and fuel injectors are missing, they will be included in the rev. 1.
If you'd like to build this thing you need the following items. I got them from e-bay and/or hobbyking.com
Bearings:
LP rotor: #2 688zz
HP rotor #1 6705zz, #1 6810zz
Hardware:
LP shaft: threaded rod M8 L=220
6 Metal push rod M3x300 (from hobbyking)
M2x6
M2x8
M2x10
M2.5x10
epoxy glue
LP Fan:
12 Blade High-Performance 120mm EDF Ducted Fan Unit (from hobbyking)
Tools:
sand paper
files
drill bits (1.5 , 2 , 2.5 and 3mm) or reamers
hobby woodcraft lathe (optional)
I printed all the big items at medium resolution (0.25),…
