Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested)

Dennis,

What about an articulating arm? I've even thought about this for a machine tool. It would need to be massive (within reason 800-1000 pounds), I have some 2 hp servos already. Would be nice to mount a router on it. Could turn any large flat surface into a machine. Pick up three points from the plane to reference.

Would retract up tightly for storage and take up very little room. The perfect homeshop solution to wood cutting/shaping.

There are so many of these in use, and just as cartesian CNC found its way, I think this technology could find its way as well into the hobbyist' realm. By now there has to be some open source robotic design software somehwere. Or cheap anyway. Mach could handle the 4 or 5 axis' of movement.

Ron

Dennis Schmitz <denschmitz@...> wrote:
I was only thinking of the 3dof machines for the glue-gun application as
opposed to the 6dof stewart platforms. As near as I can tell, the transforms
for those don't have singularities, but I could be mistaken.

On 8/28/06, Graham Stabler <eexgs@...> wrote:
>
>
> No way, a hexapod is a can of worms. Software, calibration, joint
> accuracy, singularities etc etc
>
> Plus you need 6 motor drivers and motors and you don't even need
> 6-axis control.
>
> A triaglide perhaps but not hexapod. Especially an unproven virtual
> design (as far as I can tell)
>
> Graham
>

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