Thank you Tim Horton's

Of all places to find inspiration, leave it to me to find it in a semi-awake state at a Tim Horton's lineup, especially considering that I am a die-hard Java Moose guy :-)

Always trying to find the best structural and economical components, while waiting in line, I was drawn to the aluminium arms that held up their monitors. Perfect symmetry, weight reduction holes... integrated elbows via a 2 bar upper arm section bolted into a 1 bar lower arm section. Simple as pie, aesthetically pleasing and strong as hell.

Material is 6061 T-6 Aluminium
Dimension Choices:

• Main spans: 1/2" x 1.5" x length

Extremity structure settled. Thanks Tim :-B
_______________________________________________________

PS - After re-reading some best practices on Exo-Frames, I believe I have had a Eureka moment in regards to some of the recommendations from the Pacific Rim.
They recommended a 4-bar stability system for the extremity spans. Up until now, I was unable to get a solid answer from anyone as to exactly what this entails. It suddenly dawned on me while designing and re-designing the extremity spans that this means tandem bars up, and tandem bars down (instead of my single bar in the lower position).

To accomplish this, I would need some sort of Delrin-washered Aluminium spacer at the elbow to maintain the proper gap. The upper and lower insertion (body connection) points can act as their own integrated spacers (includes Delrin washers to reduce friction).

Upon further consideration, I think this would also prove to be a superior platform when it comes to mounting the actuators in a stable manner.