Using the Mining Dim Portal
Getting to the Mining Dimension
The Mining Dim Portal is the single block this mod adds, and it exists to move you between your normal world and a dedicated mining dimension. Place the portal block where you want the link to sit, then interact with it to travel through.
The mining dimension is a separate world intended for resource gathering, so anything you mine there stays in your inventory when you return. Keep in mind that it is its own dimension: the terrain, light level, and mobs you meet there are not the same as the ones at your base.
Because the portal is a block rather than a structure, you can pick it up and reposition it if you want the entrance somewhere else. Build a small shelter around it on both sides if you plan to use it often, since arriving in an unlit area is the quickest way to run into trouble.