The file 'Underwater Cities Tunnels – Remix 3D Printer Model' is (stl) file type, size is 1.1MB.
I've made a slight remix of the original tunnels:
1 - added a shorter tunnel for Metropolis connections as it bothered me they didn't fit
2 - Each tunnel is now marked according to it's length and place, as I was finding it annoying to find which was which:
Vertical - |
Horizontal - -
Diagonal - X
Metropolis - Small hex
Tunnel-.stl | 595.8KB | |
Tunnel-Hex.stl | 601.3KB | |
Tunnel-I.stl | 588.4KB | |
Tunnel-X.stl | 614.6KB |