Customizable Turboprop Engine Model - Propeller Rotor and Jet Core (Educational)
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Parametric turboprop: prop rotor plus 3-stage jet core. Customize prop blades, span and core in TrueGeometry Playground.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other 3D Objects for Learning
- Licencja
- Creative Commons — Attribution — Noncommercial
Heads-up, honestly: this is an untested print. The prop rotor IS a separate STL from the 3-stage jet core, but a spinning assembly has NOT been verified - no interference or tolerance check has been run, so treat it as a display and classroom model until a test print proves the fit. If you print it, please post a Make, it genuinely helps.
WHAT IT IS
A parametric desktop turboprop / propfan: a 4-blade propeller rotor (NACA 4415 sections) ahead of a 3-stage axial jet core, built natively in TrueGeometry Playground from two commands (/aerofoil jet + /aerofoil fan). Engine axis is Z.
CUSTOMIZE IT
The recipe is variable-first. Change the /set_var lines and rerun:
core STAGES 3/4/5, RADIUS 15/20/25, LENGTH 60/100/140; prop presets PROPBLADES 3/4/6, PROPSPAN 35/45/55 (edit the /aerofoil fan line).
The full how-to is in the attached PDF guide, the recipe file is attached, and the same commands are below.
FULL TRUEGEOMETRY PLAYGROUND RECIPE
// #3 TURBOPROP / PROPFAN - prop rotor + jet core
// Presets: PROPBLADES 3/4/6, PROPSPAN 35/45/55
/set_var STAGES 3
/set_var RADIUS 18
/set_var LENGTH 80
/set_var PROPZ (0-$LENGTH/2-8)
/aerofoil jet $STAGES $RADIUS $LENGTH
/tag_last Core
/aerofoil fan 4415 20 45 4 35 -10 5
/tag_last PropRotor
/move @PropRotor 0 0 $PROPZ
HOW TO RUN
Open Playground (link below), Cancel the agent popup, open the Script panel in the bottom toolbar, paste, Run. Detailed steps with markers in the attached guide PDF.
FILES
3_turboprop_assembly.stl - the full model, prop + core (main file)
3_turboprop_proprotor.stl - the 4-blade prop rotor alone
recipe txt - the commands above
guide PDF - how to run and customize in Playground
LINKS
Build it yourself in TrueGeometry Playground: https://www.truegeometry.com/CoreWebGLTG/KBEAgentHTTP.html
Full article with presets, tables and FAQs: https://blog.truegeometry.com/0_0_0_0/blogs/post-65b4ec9d.html
Part of a 5-model jet engine family: turbojet, turbofan, compressor blade on a stand, desktop wind turbine.
License: CC BY-NC 4.0. Free for students, teachers and makers to print and learn from; commercial use needs TrueGeometry's consent.
Made with AI assistance (disclosed honestly). Images are live Playground captures; the preset card is a render of the recipe lines.