Re: [CAD_CAM_EDM_DRO] Re: Hexapod design drawings

rab@... wrote:

>
> Doug,
>
> Thanks for the explanation, but do you know of a diagram or picture
> that would help in understanding the connections and layout of the
> joints you describe as A,B,C,D,E,F.

Here is John Storrs LME-Hexapod page.
http://www.i-way.co.uk/~storrs/lme/LMEHexapodMachine.html

Our designs differ in that his 'tube' hangs lower and the 'screw'
is the higher part of the actuator. His motors are at the top.

My thinking is that there is lots of empty space at the top
of the machine, so thats where to put the bulky items (motor
and tube), and where volume is restricted (at the bottom) is
where to put the (relatively thinner) screw and small universal.
The bulkier the objects are (at the bottom), the less angular
range the tool platform has (a Bad Thing). The motor spins
the tube directly (around the stationary screw), hence I am
calling it a 'spin tube'.


BTW, John's LME stands for "Laboratory for Micro Enterprise" where
the philosophy (and hope) is that by carrying out new research and
development vectored towards affordably priced equipment, that
whole new 'cottage industries' will be economically feasible
and socially desirable.

In a way, that is what we are all doing, by finding ways of
bringing expensive CNC technology down to the hobbiest (and the
small "cottage industry" manufacturer).

Doug Fortune
http://www.cncKITS.com