Welder Help

[Phoroneus]

I think he means the gap in between the bottom edges of the welders. I'm not sure how that problem is occurring, to be honest. If you put all the welders' centers on the same spot and rotate them, the edges should perfectly line up and give you no spaces. Failing that, you can try rotating the welders a bit less and seeing if they clip noticeably.

Edit:
You may also want to assign a different texture to the ceiling. If you pick a texture that matches the mansionbase pillars, that could tie the scene together and require no finagling of the wall02 welders.