$20.00Turboprop engine, RGB separation type

myminifactory

Some Turboprop engines have RGB (Reduction Gear Box) integrated, while others have separation RGB. And the prototype of this type was developed in the 1950s.The RGB separation type is often used in large engines exceeding 4,000 horsepower, and is still mainly used in military cargo aircraft.The feature of the separation type is that the gas generator can be diverted to the ground generator and the marine engine as the turboshaft engine.There are both direct drive type and free turbine type turbine types. A. Features of this model① Single-axis, direct-coupled, RGB separation turboprop engine② Axial Flow Compressor (14 stages) with 2 stages Bleed Valves③ Can-Annular type Combustor (6 cans)④ Axial Flow type Turbine (4 stages)⑤ RGB (2-stage type including planetary gears)⑥ With finger Rotation Tool B. Assembly Manual (PDF format, total 24 pages)The detail assembly manual including "Parts-List", "After printing treatment" and "Assembly procedure" are prepared based on "Standard Skill (Filing, Drilling, Tapping and painting)".Diameter of holes in my design is considerably smaller than the finish diameter in order to ensure the wall thickness at the time of printing. C. Purchase Parts Information; - No Metal Bearing is used. - Aluminum Tubes - φ5, 6, 7 - See Parts List - Screws Micro screws M1.4x3.5L & M1.4x6L - Direct screw-in to 1 mm dia hole (No nut) But if you have the M1.4 Tap, it will be very useful. Screws M2 x ** -, M3 x ** - See Parts ListD. STL file Total STL files are 61 items including the stand and tools. “ws” of last 2 digits of file name means “With Support” special designed. E. Total Net Print Time: Approx. 84 HR - (Estimated as case of PLA, 0.4mm Nozzle, 0.2mm Layer Height, 40% infill and No raft and support) Note: When at actual print, each parameter may be adjusted by your experience. F. Printing settings Raft, Support, Layer Height, Infill: Depending on your experience. My models were printed by "idbox" using with 0.4 nozzle, 1.75 PLA.