Hi. My building project depends on parts staying 100% in the right position relative to each other, and I see that when I move it very slightly, the bricks in it slightly shift in various directions. Only very slightly. But it's enough to make it a problem.
I'm welding (with welds) all the bricks in the project except one, to another brick in the project. So every brick (except one) in the project stays relative to that one last brick.
Can someone tell me what I have to do in order to keep these parts from shifting?