can not print correctly

[cobalt60 0]

Hello, I've encountered a problem when I use Cura to check my stl model exported from sketchup

The model is as below(Under the transparent mode):

http://i.imgur.com/ZCTXSox.png

I have put a hollow box into a model in order to create a cuboid space inside the model. Under the normal and transparent mode in Cura, the effects are perfect, the cuboid space is correctly shown on the screen. As the following picture shows.

http://i.imgur.com/wX3aoCF.png

However, when I switch to the layer mode and drag the strip to check whether my model will be well printed or not. I find out that the space is not printed at all. The walls, or borders, of the cuboid space are not included in the model.

As the video shows:

 

during 0:20s~0:25s, there should be borders printed.

Does anyone know the reason? Thanks a lot.

 

[martin-bienz 36]

Hi cobalt60. The Model / exported stl from sketchup is probably not water-tight. In Cura if you switch the mode to x-ray, do you see any suspicious sections? Also you could try to use the free netfabb model repair service at https://modelrepair.azurewebsites.net/ to repair your stl. But I would still suggest to fix your model in sketchup. There are many resources for sketchup and 3d printing, like: http://www.fastprotos.com/help/prepare-sketchup-files-for-3d-printing.php

There are some great sketchup plugins (inspectors) that help with that. I have not resently used sketchup but maybe someone can jump in for further advise?

 

[Daid 306]

Actually, "fix horrible type A" is most likely detecting that the normals of the cube are in the same direction as the normals in the pikachu, at which point it fills them both. Disabling fix-horrible type A will not do this.

 

[martin-bienz 36]

good advice by daid. but still the model probably needs some fixing :-P.

btw: it's ctrl-e in cura or in the menu under Expert, open expert settings... (and then disabling the fix horible Type A).

 

[cobalt60 0]

OMG, disabling the fix horrible Type A really works!! Thanks you very much!

To Martin, yes, my model is not water tight. I checked it under the x-ray model, thanks a lot!

By the way, what's the difference between enabling and disabling the fix horrible Type A?

 

[martin-bienz 36]

start by hovering over the text, that gives you some details. Also check this post (and probably others):

http://umforum.ultimaker.com/index.php?/topic/2745-cura-fix-horrible-setting/

 

[cobalt60 0]

Got it. Thanks!