Re: EDM home brew units ?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Graham Stabler" <eexgs@n...>
wrote:

>
>
> >
> > Kawasaki KZ650 oil pump for the moving of dialectric.
> >
> >
> > Bill
> >
>
>
> Forced displacment is normally what they use in commercial machines I
> think as you are trying to force fluid through tiny gaps. I have no
> ideas about motorbike pumps :)
>

Similar to a automotive pump, it is the meshing of gear teeth that
move the fluid.

My concern is the wear on the pump.

I don't know fluid, but in moving air, there are different types of
fans. some for moving huge ammounts, but cannot generate any
pressure. others that can create huge pressure but no volume, and
lots inbetween.

A suction would place the filter before the pump, so that may offer
some protection.

Also, automotive oil filters are spring loaded so they will allow
bypass when filled. This may or may not be a problem.

Dave