Printing a model airplane fuselage

[Goryc]

It's been 10 days and I still have a couple of problems that I can not solve.
1. Under extrusion, after the start point
2. No adhesion between the last 3-5 layers of printing

I have already consumed 2kg of PLA without getting a clear improvement.
I am attaching files FFF and photos of the problem.

My printer is a modified Prusa i3, with HE "E6d V6 lite" with nozzle 40, Bowden.

You are my last hope to print this model airplane !!!

Thank you







FFF
https://www.dropbox.com/s/g001s6wz96z8j ... ctory?dl=0

[CompoundCarl]

I would recommend starting with their quality guide. They have 2 sections on very similar topics:
https://www.simplify3d.com/support/prin ... gh-plastic
https://www.simplify3d.com/support/prin ... -splitting

[dkightley]

I've taken a look at your model....and I'm surprised that its actually printing.

Firstly, there are several separate meshes. Where these separate meshes meet with each other, there will be issues with included voids where the shapes interleave.

Secondly, the outer cowling mesh is not manifold. All you're getting printed is a single outline...which will explain the separation in the upper layers where the outside edge moves off vertical.

Thirdly, due to the above, your settings have zero infill and top layers. This has resulted in all of the fins having one perimeter with a gap between them, resulting in two parallel single filament vertical walls.

You really need to first sort out the issues with the model. Once you have got rid of the non-manifold meshes, use the Separate Connected Surfaces option to separate the meshes in S3D. And finally, with a component with such thin walls, I would really recommend dropping to a smaller nozzle so you'll have some overlapping of filaments in the upper walls, eliminating the separation...and making the model stronger.