I was thinking the same thing.   If the carousel is not yet designed
then build it such that only a simple translation(s) is required to
load the part., no rotation.

The reason you buy the general purpose robot other then the simpler
automation is that you expect to have other jobs in the future.   Or
if you are loading loose parts from a bin

Your 0.002 spec would be hard to get on a 6 DOF robot.   Think about
it.  You have a servo that holds a stick. on the end of that stick is
a second servo that holds a stick and so on through six servos.  now
the end of the last stick holds the part and you want it positioned to
0.002 inches.   That would be impressive.  I think it is the current
state of the art.  Not cheap.

Many times it is cheaper to add a sensor, like say vision or "touch"
then the arm can move until it "sees" the edge of your part.  All
those motors and encoders can be a LOT less expensive.

I'm coming at this backwards.  I'm learning about machine tools in
order to support research into robotics



On Thu, Mar 16, 2017 at 5:06 PM, andy pugh <bodge...@gmail.com> wrote:
> On 16 March 2017 at 14:40, Andy Evans <a...@evanspt.com> wrote:
>> Grip a part from a magazine (Think 35mm slide carousel)
>
> Maybe use the exact same mechanism as a slide carousel?
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
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-- 

Chris Albertson
Redondo Beach, California

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