Welding

[Tungsten Whitmarsh Cadow]

I wanted to weld something to the base, but the game tends to want to weld the base to new thing I made. If the base is huge it usually ends up upside down and there's no way to move it.

[TakingFire]

You need to weld the base to the ground (make sure it's one block above) and then weld your piece onto it. Remeber, you can always move anything with the lift.

[Pitchforque]

As far as things ending up upside-down, you can rotate parts that you are about to weld with Q. You'll see the wireframe rotate around showing you what orientation you're about to weld it in.