I was actually quite intrigued by this design. After sketching it I realized it is not just two interlinked tribars, but you can also trace out a square frame for each axis.
Cube
2012-10-21
Linework | Fillwork
The cube is enveloped by two intersecting impossible tribars.
Lisa on 
Grant on 
John Zylstra on 
Why the asymmetric placement of red triangles on the center part?
You mean the red squares? (in perspective) :D Haha, it’s a die! I thought the center cube looked very lifeless and hard to distinguish (check out the Linework version) so I added some flavor.
Heh. I was [i]just[/i] experimenting with Penrose triangles and what I could do to make them more complex (squares, pentagons, etc) and you go and do this awesome frame. Great work.
Also, I somehow find the division of the bars into two/three colors a bit detracting from the big illusion (even though, it adds a different kind of it). Either way, impressive use of the Penrose illusion.
Yeah, I agree that it gets a bit too dense :P I was running short on time though, and really wanted not have it all in just one color so this is how I divided up the geometry ;) I might revise it at a later date, then to showcase the double-tribar + triple-square feature. Not sure if it is possible yet, hehe, would have to look into it.
I think it is.
And I think it will look amazing.
Kind of like ancient Celtic trefoils, but mind-blowing.
A few questions…What is you work flow? I mean, do you design/plan your works before putting it together or do you sit down and whatever comes out works? What program do you use?
Hello IVMMX :) I pretty much always sketch on paper, often starting out randomly and then trying to make sense of it. I don’t have the luxury to spend large parts of my time on this so it becomes focused sessions. After that I move to the computer to draw it again. It is explained fairly well on this page: http://andreasaronsson.com/impossible-figures/#technology