Subassembly Composer : Create a fixed width ditch between two slopes

[cyberflow]

Hi all,

I'm trying to figure out a way to create a fixed width ditch at the intersection of two different slopes.

I already tried to pull out the intersection point of the two slopes and create an offset of both to have the 300mm plateau but one side never fits in Z since it's not symetrical

Doing some brainstorming here to find a solution, pretty sure this needs some good ol' trigonometry notions in it

[cyberflow · Accepted solution]

Alright, 
After giving it some rest, an idea poped and it works :

Offset the plateau at the top slope and make an auxiliary slope so that it targets the oposite slope :