Path marker

Path Markers define a path that a builder will follow when building structres. A path does not have to follow any axis, so they can create diagonal lines that go up hills or down caverns. Paths created with Path Markers can define open and closed paths, so you can have an arc or a circle path.

Usage
Powering a path marker with a redstone current will cause it to project blue beams of light along each axis for 64 blocks. Unlike landmarks, path markers do not need to be in lineto connect to each other, so the beams can be used to measure distance.

When you have placed 2 or more path markers, right click on one. It will automatically search for the closest path marker, and connect it. When connected, there will be a visible red laser between the pathmarks. A single path marker can only connect to 2 other path markers at any time. IF the distance to the closest available path marker is large, it can take a few seconds for the activated path marker to find it. A path marker is considered in range if it is within a 129x129x129 cube centered on the activated path marker (64 blocks in each direction). When powering one path marker with a redstone current, the range it can search in is 1 block beyond the blue laser.

Path markers can only be used with builders. placing a builder next to an activated path marker will cause all connected path markers to pop off the ground. Be sure to pick them up again.

Then, when you start the builder with a template or blueprint inside, it will copy the structure in the blueprint or template along the red line, as far as the line goes. this is useful if you want many copies of the same structure along a certain imaginary line in very little time.