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Turboshaft Engine with Radial Turbine

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Creation quality: 5/5 (1 vote)
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3D design format
54 files (STL and ZIP) Close
  • Air-Intake-Case201.stl
  • Air-Intake-Case201mws.stl
  • Air-Intake-Case301ws.stl
  • Assembly Manual-TSE01.zip
  • BRG-Hsg-Body101ws.stl
  • BRG-Hsg-Cover201.stl
  • BRG-Shim06-01.stl
  • BRG-Shim08-01.stl
  • BRG-Shim10-01.stl
  • C-Chamber101ws.stl
  • CC-Case101ws.stl
  • Case-Clamp02.stl
  • Case-Clamp101.stl
  • Case-Clamp201.stl
  • Comp-Case-Flg01.stl
  • Comp-Case-Out01ws.stl
  • Comp-Case01.stl
  • Comp-Diff01.stl
  • Comp-Diff01CCW.stl
  • Coupling-Sft01ws.stl
  • Front-Shaft01.stl
  • GB-BRG-Stop01.stl
  • Gear-BRG-Hsg301ws.stl
  • Gear-BRG-Hsg302.stl
  • Gear-Box-Cover301.stl
  • Gear-Box-Cover302.stl
  • Gear-Carrier01.stl
  • Gear-Carrier102.stl
  • Gear-Sft06-101.stl
  • Gear12-Drive101.stl
  • Gear12-Pinion101ws.stl
  • Gear16-3-10-01.stl
  • Gear24-3-6-01.stl
  • Gear36-Ring101.stl
  • Impeller01.stl
  • Impeller01CCW.stl
  • Ring-Gear-Sft201.stl
  • Shaft-Spacer101.stl
  • Spacer-10-018-01.stl
  • Spacer-10-030-01.stl
  • Spacer-6-015-01.stl
  • Stand-Base01.stl
  • Turb-Case01.stl
  • Turb-Nozzle101.stl
  • Turb-Nozzle101CCW.stl
  • Turb-Shaft101.stl
  • Turbine101.stl
  • Turbine101CCW.stl
  • VC-Duct-Sprt01.stl
  • VC-Duct-Sprt02.stl
  • Vacuum-Duct803.stl
  • Vacuum-Duct901.stl
  • Vacuum-Duct902a.stl
  • Vacuum-Duct904.stl

Learn more about the formats
Last update 2020-08-15 at 02:16
Publication date 2018-06-18 at 05:44
Design number 27290
konchan77

konchan77

Certified
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3D printer file info

3D model description

This model is a turboshaft engine which uses a radial compressor and a radial turbine.
It is a type mainly used for compact engines. Example: APU (auxiliary power unit) etc.
This was created in order to use for the source of a shaft horsepower for turning other models (for example, main-gear box for helicopters, etc.) besides only explaining a structural aspect.
A home vacuum cleaner is used as the source of power of this model.
The features are as follows.
① Radial compressor (Impeller), Diff
② Radial turbine rotor, Turbine nozzle
③ Planetary reduction gears
④ Output shaft
⑤ Use metal ball bearings for all the rotating shafts.
⑥ Prepare the parts for reversing rotating direction.
⑦ In order to disassemble easily, introduce the clamp system and the finger screw.
⑧ The vacuum nozzle with the variable opening for speed control.

Since it rotates well beyond anticipation, it can use as the source of power.
But, the maximum allowable RPM and torque are not verified.
Please decide by self-responsibility.

Video: https://youtu.be/maxeQ6HPnNI

B. Assembly Manual (PDF format, total 20 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)".
In order to make it rotate smoothly, careful eccentricity and gap adjustment are needed.

C. General Notes
1. Bearing
Metal Ball Bearing are used for every shafts. Refer to Appendix.
2. For M1.4 Screw
No need “Tapping”. Drill with φ1.0 drill then direct screw-in.
3. STL file
“ws” of last 2 digits of file name means “With ” special designed.
Total STL files are 48 items including the optional items. (Vacuum Duct, Stand etc.)
4. Blending of the gear tooth profile is important to get smooth rotation.
5. For the Helicopter Power Train, use the following parts as a set.
- Comp-Diff01CCW
- Impeller01CCW
- Turb-Nozzle101CCW
- Turbine101CCW

Total Net Print Time: Approx. 72HR
- (Estimated as case of PLA, 0.4mm Nozzle, 0.2mm Layer Height, 40% infill and No raft and )
Especially, Air-Intake-Case201mws.stl needs about 12 hours to print.
Note: When at actual print, each parameter may be adjusted by your experience.

[Update] 2019.05.07 Gear-Carrier102.stl changed, 2019.05.09.Assy-Manual typo revised
2019.06.29 Gear-BRG-Hsg301ws.stl added.
2019.06.30 Air-Intake-Case201.stl (No STL) is added for reference.
2019.07.02 VC-Duct-Sprt01.stl, VC-Duct-Sprt02.stl-added.
2019.08.20 Note C.5 added. Air-Intake-Case301ws.stl (with my designed ) added.
2020.08.14 Figure "Selective Parts for Engine Rotating direction" added.
2020.08.15 Assembly-Manual - Selective parts information revised.

I do hope your success!!

3D printing settings

3D printing settings
Raft, , Layer Height, Infill: Depending on your experience.
But the parts having gear, small shaft and thin portion: 100% infill is recommended.
My models were printed by "idbox" using with 0.4 nozzle, 1.75 PLA.

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