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I want to make a tunnel boring machine for digging ~2 meter tall tunnels in sandstone. Sadly I live in a place with only sand in the underground and that's not suitable for digging tunnels DIY style
That's all?
Man, I'm really sorry you're stuck in a sand pit.
We have so much fun with our TBM's in my area. My neighbor, Ralf, built a 3M BEAST! You wouldn't believe the daily progress he makes. It's got integrated support walls and everything. Our club is in a bit of a feud with the hacks 3 subdivisions over. They keep boring too close to our tunnels. Not. Cool. Man.
Anyway, at least you can cut and cover with sand, a perfectly viable tunnelling strategy with lower startup costs.
Oh that sounds so cool, you got any videos of those machines?
I could do other tunneling methods, but I really want to make a TBM specifically
It feels like you guys are speaking a different language from a different planet
Cody's Lab is also looking for an area to do stuff like that.