About this 3D model

This model is designed as Turboprop Engine having the following features for educational purpose.. Features are; (1) Centrifugal (Impeller type) compressor (2 stages) (2) Can type Combustion Chamber (7 ea) (3) Axial Flow Turbine (3 stages) (4) Reduction gears and propeller shaft (reduction ratio = about 0.1) (5) Air inlet cowling with Oil Cooler Air Passage Download files includes; -files: STL Files - Sectionalized ZIP -images: STL File Figure and Index Picture for assembly Aid Purchase Parts Information; -Bearings WBC6-12ZZ (6 x 12 x 4) 6ea - Assemble to outer holes of each Panel ---- Please change these BRG size.---Sorry. F686ZZ(6 x 1 3x 5) 2ea - Assemble to center of each Panel 689ZZ (9 x 17 x 5) 2ea - For LP and HP Impeller 6900ZZ (10 x 22 x 6) 2ea - For Prop-Shaft, Turbine Shaft -Aluminum Tubes 9mm dia x Appox. 70mm - as Compressor Rotor Shaft (Make slots both ends) 6mm dia x Appox. 100mm - as Turbine to Compressor Coupling Shaft -Screws Micro screws M1.4x3L - Appox. 70 ea - Direct screw-in to 1 mm dia hole (No nut), Head side flange hole is 1.5 mm dia. Screws M2 x 20L - 1ea - M2 Tap is used - Starter associate parts Screws M2 x 10L - Appox. 12ea - M2 Tap is used - Red. Gear Panels associate parts and IGV Screws M2 x 6L - Appox. 4ea - M2 Tap is used - Diffusers and Turb. Shaft Coupling Assembly Points Rotors, Gear Train Set and Casings can be assembled and adjusted separately. Combustion Air Casing is slid to the outlet elbow assembly until aft end clears from the turbine case its bore at first. Then slide back to bore. Gluing is optional. Standard Skill (such as Drilling, Tapping, Filing, Tightening, Painting and Gluing etc) is needed and perseverance too. Total Net Print Time: Approx. 50 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. [Update] I pepared the modified parts and some tools in ; https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts I pepared the modified parts (No.2) - 2018.1.6 https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts-no-2 I prepared the figure for Reduction assembly aid - 2018.1.30. "01a-Reduction Gear01.jpg" I pepared the modified parts (No.3) - 2018.2.13 https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts-no-3 Description revised - 2018.7.11 Add "Assembly Charts (zipped of pdf format)" to assist assembly. Related Manual - 2019.9.7 This time, I have prepared the detailed Assembly Manual as an option for those who want to build this engine with a small amount of money. Refer to; https://cults3d.com/en/3d-model/tool/turboprop-engine-assembly-manual-option Photo & Image size changed - 2021.7.14 I pepared the modified parts (No.4) - 2025.4.19 https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts-no-4-helical-gears-of-reduction-gearbox Before make this, please refer these. Thanks.