Align 2 lines on 2 Angled faces for extrusion?

Hello,

I am trying to extrude a shape along faceted face edges and have both variable (sides) and fixed geometry. The image describes what I mean (much) more clearly.

I don't know if I've gone about my definition the right way to achieve this.

PS. Also when the bottom circles radius is set to 4 an error occurs with one of the top lines.

Many Thanks,

James

Attachments:

ExplanationOfSkeletalStructure.png, 174 KB
EXAMPLEdef.gh, 9 KB

Replies to This Discussion

Permalink Reply by Damon on February 20, 2015 at 8:36am

Here's a quick definition that creates the shape you seem to want. I don't know about the "Cut Hole" and extrude part or how each shape relates to the others. What is the finished product supposed to look like?

Attachments:

EXAMPLEdef.gh, 12 KB

Permalink Reply by James on February 20, 2015 at 3:16pm

Thank you Damon,

Essentially there would be one shape (the one you created) and it would be applicable to all edges of a faceted surface. Each of the different angles of the surface would be matched by the top lines (above image - bottom right).

The finished product would be a triangulated mesh with every edge replaced by the extruded shape. As for the cut hole, I would use a *Edit* Solid difference, I just didn't know if it was easier to apply it at this stage.

I cant figure out is how to generate the plane on the end of a line, whist maintaining the bottom of the "shape" equal distance from each surface

Thanks again