Printing a support structure inside the mesh

[mamo 0]

Hi, I'm using Cura 3.5.0 and I have a question about printing a support structure inside the mesh.

I made a cube and on every 6 sides created an inset number ; 1, 2, 3, 4, 5, 6

 

On layer 71 it starts to print the underlying layer for the indented number 1, here is the problem, this is the top side of the cube.

So it starts to print this layer in thin air.

 

So I lfound the option support placement, which is not helping me to create an in mesh support structure that holds the shape of the number 1 printed in the top side of the cube.

I attached an image screenshot of layer 71 printed in thin air whilst the support option is set to everywhere.

 

Hopefully can anyone give me a tip to achieve this.

 

Thank you.

 

Regards

MaMo.

[gr5 2,333]

You want "infill".  Not "support".  Play with infill settings.  You might want to try the "gradual infill" feature to save time if you ever print something much larger.

[mamo 0]

Thank you, yes I already experimented and printed with infill, but instead of the whole cube be filled, perhaps it is possible to create an infill structure that matches the shape of the inset top shape?

Edited October 10, 2018 by mamo

[geert_2 560]

For this sort of special cases, you would best design your own custom supports in your CAD file, I think.

 

What is the purpose of having the numbers on the inside? Even if you are going to print it transparent, and with a dissolvable support material, it will hardly be visible, if at all.

 

And if you print it closed, without openings, there is no way to get the support out.

 

[mamo 0]

Yes thanks for your tips and info, you're right, it is hardly visible.