Cutting an stl to print

  • 3D Printer Model: bambu A1
  • Slicer: same
  • Hardware Setup:
  • Problem description: not solid after i slice
  • What I tried: meshmixer

Hi,
So recently i downloaded a file and it was skp. So i converted it to stl, brough it into my printer software. Since its a big file, i cut out the first part that i wanted to print. Meanwhile i get the error on the print. And that i need to repair it. So when i do it totally fills in the part. And if i dont repair and try to print, there is little to nothing to print.
The file is the bridge of the starship Voyager, and i cut out the mission ops section to print first.
I though i could fix it in meshmaker, but to no luck.
Maybe it cant be done, but never hurts to ask

Thanks

Dukeman3ca