Oops, that one slipped. I'll fix it.
I measured the 'Strong pillar' to fit 2x2 of GW hub terrain pieces together.
And you don't have to follow the 'manual' I provided, you can print each individually, or mix and match them as necessary/desired. It will just cost you little more for the extra cardboard.
@JawRippa I have finished most of the hydroponic tiles I wanted, and I'll upload them soon. I was just too lazy to the menial work it requires.
I can upload the caverns as well, but I made only 3 tiles that are not very useful without having a couple more. Also, thank you. As a big railway fan (now passive, but very active in my young years), I just had to add a train. Even the rules are fun. I my game it demolished a couple of gangers who got boxed in and didn't manage to escape in time.