Re: Hexapod

Doug,

I'm just trying to work out if the tension / compression distribution
described would cause the platform to rotate anti-clockwise untill
the forces balanced out and whether swapping the tension /
compression between say AB & CD would overcome this or cause the
platform to tilt ?

Rab

>
> Lets say AB EF & IJ are under tension, and
> CD GH & KL are under compression.
>
> Notice at the top frame of the machine, pairs of

tension/compression

> come together (concentrating the forces in the brackets there,
> but minimizing stresses to the rest of the frame). There will
> be frame stresses, but are mostly from (and the same magnitude as
> the vector additions of) the tool pressure.