Re: Higher performance systems

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mariss Freimanis"
<mariss92705@y...> wrote:

> Jon,
>
> The other thing being left out of the whole thing is Newton's
> contribution; the equal and opposite reaction thing. 400 lbs of
> reaction force appearing and disappearing on every acel/decel

would

> get things rocking pretty good.
>
> Our pick-and-place machine gantry moves at about 4 ft/sec (2880

IPM)

> and I estimate the moving part weighs about 100 lbs. The machine
> itself weighs 3,000 lbs. We had to put anti-skid pads under its

feet;

> otherwise it would start walking around the shop like a badly

loaded

> washing machine.
>
> It uses a toothed belt / pulley transmission and linear encoders.

The

> belt is 3" wide to withstand the 1 or 2 HP the AC servo motor
> delivers to the load.
>
> Mariss

Sounds impressive to say the least. Do you have a picture of it on
the net anywhere?