Origami triangle with crane

I’m trying to build a triangle and I want that the unions are with the tool finger Joint, I dowland the plugging of Crane but I’m not sure how it works. I tried different ways, but I coudn’t do it.
This is a picture of the structure:

I have this code at the moment:

And the unions that I want to do are these:

Plugging: Crane | Food4Rhino

I have the structure of the triangle and I will put thickness in every piece and the unions. Someone can help me, please?