Re: Hexapod- Hexaslide

You can have the best of both worlds, make a vertical triaglide for 3
axis. Compact, simpler to build (than a full hex), compact and a
fast machine to boot.

You could still use your idea to prevent nut rotation but it would
have three vertical plates.

Graham

> Thanks for the really interesting link. It certainly peaked my
> interest.
>
> The Triaglide I think can be made even more affordable by
> eliminating the linear slides and using fairly large diameter lead
> screws with the gimbal joints mounted directly on the nuts. You

then

> only need to devise some method to prevent the nuts rotating. This
> can be done by mounting some flat carbon air bearings on the nuts

to

> push against the ceiling of the machine. This eliminates the
> expensive lead screws but requires you to have compressed air.
> Probably you can get the same effect by using some ball bearings,
> but the surface of the ceiling plate then needs to be better

quality.

>
> The German design is compact, but I do not like the idea of 6
> ballscrews. For a commercial venture the economies of scale will
> kick in, but for a hobbyist, it could be expensive
>
> Stephan
>