Help making an object solid and printable

[r_hodgettsPDTTL]

I have a 3D model of an aircraft I am trying to make 3D printable. The model has lots of internal detail however I just want to make a solid filled object and then 3D print in two opposing halves.

I am trying to use Meshmixer to achieve this but am struggling to get anything like what would lead to a decent print - I have tried adjusting the make solid settings but to be honest, I am getting nowhere.

Can anyone advise what I am doing wrong or am I simply trying to something that is not easily possible? I have attached pictures of the 3D model before and after I have tried to make it solid.

Thanks,

Rich

[hfcandrew]

I can't say too much without the .mix.

But I do see blue lines which is bad.

I'm guessing this your first time printing something. Try auto-repairing in 'Windows 3D Builder'  first.

[r_hodgettsPDTTL]

Hi hfcandrew, thanks for the reply - not my first time printing something or drawing - but my first time trying to make a 3D model not designed to be 3D printed 3D printable.

[hfcandrew]

Ah yes, gotcha.

Yep, preparing a model for printing, which was not originally designed to be printed, either takes 1 second, or 1 hour.