I found the turbo MrsBecraft had put up, but the model was not very print-friendly, so i found the original model on grabcad: https://grabcad.com/lib...rary/complete-turbo-including-internal-bits-1
i changed a lot of things to make it better to print like removing some floating bolts and i also aligned the 2 housings so they are straight, and i moved the propellers out and made them bigger so its more realistic.
3d model print parameters
Wanhao Duplicator i3
for the small prints like 0.3-0.6 scale... i used 25% infill and supports in grid and 25% infill for the supports also otherwise the supports fell over. for the bigger scale like 1-1.4 i used 20 infill.