Re: PO BOY Water Jetter ????

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Ken Campbell" <deltainc@...>
wrote:

>
> Hi peeples: we are a ma/pa shop that occasionally cuts some thin (

1/8

> inch ) graphite/composite sheet the hard way ... with an old Boss4
> Bridgeport and a speeder head at about 10 K rpm with a 1/8 carbide

pin that

> has to be replaced about every 30 inches.
>
> Cant afford a pro water jet cutter, but it seems there should be

some way to

> crutch up a head that could go on a DIY xy (z? ) table to do

lightweight

> water cutting .......
>
> ***********
>
> If seals are the $$$$ problem, how about encapsulating a cam-push

pump

> inside a reservoir and just let it leak a little bit ...
>
> ... if need be, the injection could be timed with the software to
> synchronize with the stepper movement to give a smoother cut ...
>
> how about using fuel injection injectors or bodies for the jet

nozzles? pop

> pop pop ... hey, we are talking PO BOYS Crutched Up Miracle Machine

here ...

>
> *******
> Heh, if any of you have ever routed graphite sheet, you will

understand the

> desperation to find a better way. dirty itchy dangerous to

lungs ...

>
> Anyone solved this already ???
>
> regards, ken campbell, deltainc-usa.com
>
>
>
> --
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8/18/2006

>

Hi Ken,

The device you may be interested in is known as a maximator.

Its a liquid pump that that is driven by an air compressor. They come
in a variety of ranges and operate on 1 to 10 bar air pressure input
and can produce liquid pressures upto 75000 psi or 5500 bar output.
Perfect for making a waterjet cutter. Best thing about them is that
they are a fairly small unit and could possibly be mounted direct to
a z axis.

Hope that helps.

Regards, Rob