[2ndDivisionVet]

FULL TITLE: FilaOne Gray Carbon Nanotube 3D printer filament supports 1,000 times its own weight during amazing strength test

[Celerity]

When is MagPul buying ?

It’s time for Magpulium in our materials list :)

[norwaypinesavage]

I'm not that impressed. The bar appears to be about 1/2 inch by 1/8 inch by 2 inches. A similar sized steel bar would weigh 1/2 oz. Using properties for 17-4 PH steel (which I'm familiar with, without having to look it up), it would support at least 2000 lbs. in shear, the manner shown in the video. That's 32,000 times its own weight.

Note, though, the manner shown in the video was quite imprecise. I believe when tested properly, the carbon nanotube could support much more than was shown.

[TexasTransplant]

Yeah but can ya Weld it? Form it? Laminate it? Mass Produce it?

I’m old but I still like to think about new stuff

[MarkL]

I wonder if materials of this type might eventually make “Beanstalks” practical?

For those who aren’t familiar with the term, it’s something from science fiction that many believe might actually make space flight practical. The biggest problem with doing really useful things in space, is getting raw materials or parts off the surface of the earth. A “beanstalk” would act as sort of an elevator, getting parts and materials into geosynchronous orbit, where space ships could be assembled.

It would be a lot cheaper and easier to begin a trip to the moon, mars, or the asteroid belt from orbit, rather than the surface of the earth.

Mark

[gaijin]

Later

[reed13k]

Any idea how it is shear stength vs compression strength? I read this as they only measured it in elasticity.