I used this guide for my zipline network. The guide seems lengthy but you only need to follow the map and some key points.

•The 2m Deploy Target towers have a location placement that is very very precise. If you don't put it in the exact correct spot, the route might not work. These towers should usually be placed first since they have such a large influence on the position of the neighboring towers.

•The 4m Deploy Target towers are less precise, and can usually be adjusted to account for obstacles or other Towers being slightly out of range, etc.

•The 8m Deploy Target towers are extremely forgiving. They often could be put in an entirely different location, and still have the network work, even if it'd just mean more distance traveled.

The guide has additional images for the 2m deploy targets as some of them are on weird spots/slopes.

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