What's the sturdiest cube?

[DylanReynolds]

Rubik's touch cube?

XD....

 

[~Phoenix Death~]

Rubik's
Or, ANY CUBE, but tighten the tensions ALLLLL teh way down.

 

[Chris Brown]

Rubik's
Or, ANY CUBE, but tighten the tensions ALLLLL teh way down.

Also maybe shorten the springs a mm or 2 and glue the caps..

 

[Julian]

This one looks pretty sturdy to me.