Model looses most information when sliced for 3D printing (not manifold?)


Well, this is my first post here. I hope it’s in the correct place.
I’ve only been using SU 2014 for a few weeks now - ever since I received my 3D printer.
I’m learning slowly, but surely through the many trials and tribulations that ensue learning something new.

My problem is the attached model, after ‘sliced’ for 3D printing ends up looking like 95%+ is missing - just some lines levitating in space.
The model was fine before I used the fancy curviloft plugin to fill in the object bottom - between the extruded arc, and the ends of the object. It did an amazing job, but I fear that caused the problem I’m experiencing.
I’ve spent a good many hours on this - especially to figure out how to ‘fill’ in the aforementioned area. I thought my issues were put to bed only to discover that there are more.

Can anyone tell me how to fix my model please? I would be most grateful.

quick test.skp (1.5 MB)


To begin with the model needs to be solid, which means it must be component / group and water tight. Once you made that check windows- enmity info, if it reports volume it is solid. There are two plugins you should get and use, ThomThoms soild inspector and TIGS solid solver. The former will ID problem areas, the latter will try and correct model. You need all geometry to be one component ( no nesting), no text, 2 manifold.
TIG gave a good summary of requirements here Can we convert a sketch up model to a 3d printing model?


Click through scenes in this copy of your model.
Each scene points to a problem you need to address.
Generally it’s quicker and better to erase mistakes and draw again rather than try to fix them.
Given the extent of the errors in this model I think it would be better to start over.
quick test issues.skp (310.4 KB)


Learn to adjust the Style to suit the modeling situation

All there is to work with in SketchUp are Edges and Faces
Turning off Profiles and other unnecessary effects will help you clearly see what you need to see.

Toggle Hidden Geometry on/off to inspect and work with all the edges in the model.

Wait for the Inference cues and read the tool tip message before you click.

Use of Inference Locking will reduce errors and speed your work.