Slicer separating shapes in an object

[cabaa99 0]

In the attached design, the horizontal cylinder intersects the (sort of) conical vertical shape.  The solid view shows no gap between the shapes, pretty much like a solid join.

 

However, when I slice and print the attached shape, the horizontal cylinder has a gap in the intersection. The gap closes as you move up the slicer, but most of the intersection remains apart. That makes the joint really week and useless.

 

Why is the slicer creating this gap and how can I fill it?

Thanks.

CFFFP_Vacuum_for_lip_retractor.3mf

[GregValiant 1,245]

When I imported the models into Cura it reported an error "The model is not manifold".  I haven't seen that before.  It mentioned that the Highlighted areas (polka dot area in your top image) contained extraneous surfaces.

The model did slice and does not show the red "Outer Wall" lines between the cylinder and the vertical feature.  It sliced as a single piece with infill between the two features.  I had Support turned off.

[DarRAven 4]

12 minutes ago, GregValiant said:

The model is not manifold

That means it is not watertight you should be able to print your object with other slicers but cura will kepp warning you you can repair your models by the link below

 

Just drag and drop your file there and it instantly repairs it. Well.... atleast it did mine. 🙂

The file now loads up in Cura without any errors.

 

https://3d-print.jomatik.de/en/index.php

Edited May 6, 2020 by DarRAven

[cabaa99 0]

Thank you. I just started a vanilla project, sliced it, and the gap is not there. So my project setting must be triggering it... I'll test the differences to find out what. 

[DarRAven 4]

2 hours ago, cabaa99 said:

Thank you. I just started a vanilla project, sliced it, and the gap is not there. So my project setting must be triggering it... I'll test the differences to find out what. 

I am glad to be able to help you