PATH ASTERISM_Series

A parametric joint / node research project while at Autodesk's Pier 9 Artit in Residence program. I explored a number of node and joinery types including this cross stub tenon for wood-to-3D print and TIG welded stainless steel 3D prints. Some of the optimization and sorting of the nodes was done with the help of Peteinarelis Alexandros.
This is an ongoing project! More here:
http://patharc.com/portfolio/asterism-series
and process here:
http://www.instructables.com/id/Asterism-Series/

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Comment by Jacek Jaskólski on March 12, 2015 at 4:40pm: oh, I didn't know the exoskeleton plugin existed. thanks for englightening me :-)

Comment by Matt Hutchinson on March 12, 2015 at 11:49am: I was using the 'exo wireframe' component which solves/smooths for a holistic set of interconnected input lines/geometries. You have the option of setting the end and beginning radius for each strut, though because of smoothing, the number of, and the differing lengths of various struts, the 'smoothed node' can be a bit 'uneven' meaning some of the end conditions were fine while others tapered or were smoothed farther away from the node itself. The smoothing was overall pretty good, but getting it to meet up perfectly(in terms of matching the tube diameter) at a specified distance from the intersection was less consistent that's all.

Hope that explains it better?

Comment by Jacek Jaskólski on March 12, 2015 at 10:48am: Thanks for the answer, I'm not sure I get the part:

the interface between the two would have to happen quite far from the node itself.

Could you elaborate and tell us more about the geometric solution behind the smooth node geometry?

Comment by Matt Hutchinson on March 12, 2015 at 10:02am: Thanks Jacek! I love the nodes you worked on as well! Great work. I didn't pursue the 'exoskeleton' generated nodes too much further. The 'smoothing' of the joint tended to ovalize the connection and to get the diameter to match the tube perfectly, the interface between the two would have to happen quite far from the node itself. A bit too far to be practical. I'm sure it could be solved though.

Comment by Jacek Jaskólski on March 11, 2015 at 2:28pm: Hi Matt,
Very nice results!
A while back I worked on something similar, check it out:

http://www.grasshopper3d.com/forum/topics/smoothing-nodes?commentId...

I see that one of the examples is a smooth type connection - did you further investigate this type of connection also?

Comment by lmnts on January 20, 2015 at 12:45pm: Matt, Awesome works as usual. We've been working on some similar ideas that we hope to apply to the nodes of a pedestrian bridge. I'll try to share soon.