Intersection with a clue

I am working on a standart-drill-rule for kind of a DIY architectural hut.

The idea is to have several wood pieces with one similar drill rule.

so what i did is an amount of curves and evaluate some fixed drillpoints on the sides which i need to double the beams up, as well as evaluate the intersection points on the curves. so far so good.

when i’m doubling up the beams i am getting an intersection point where the end point of one beam does touch de second one its doubled up with. somebody has some idea how to get rid of that?

see pictures below.