How to make a spline tool, without meshes merging?

I now have a spline tool for walls, but that walls merge too much on the edge. So, how do I make a spline tool that doesn’t merge walls on the edges or even better if it merges less?

in blueprints please.

FIXED IT : instead of using the spline length to place things, use the spline length as a tool. For example, if you have a wall of width 200, when u drag to spline to 450, all you have to do is calculate the length of the spline, divide it by length of wall (so 200) and with that you can figure out quite easy how many time you can place it (in blueprint calculation ofcourse) and then use for loop ( place so many times along x y location).

FIXED IT : instead of using the spline length to place things, use the spline length as a tool. For example, if you have a wall of width 200, when u drag to spline to 450, all you have to do is calculate the length of the spline, divide it by length of wall (so 200) and with that you can figure out quite easy how many time you can place it (in blueprint calculation ofcourse) and then use for loop ( place so many times along x y location).