Re: [CAD_CAM_EDM_DRO] Waterjet project

This'll be one of those, it'd be nice to be able to build it yourself...
but, it's probably not going to work or it'd be cheaper in the end to shell
out and buy one new. The best way to get hold of a system like this might be
to look out for shops closing down and selling up.

John H. who wants a waterjet / laser / plasma / flame table + Haas centre
and TIG set

> I went on a tour at Flow waterjet a few years ago (a nice shop BTW)
> the guide was telling us that one of the big problems they had was the
> seals 'extruding' thru slight scratches on any surface at these pressures
> (I think they were up to 75Kpsi at the time)
>
> on one side of the building was a temperature controlled grind shop
> to superfinish the high pressure parts
>
> if you're going to experiment with these things at home make sure to

update

> your life insurance policy first !
>
> Brian
>
> On Friday 26 July 2002 22:49, you wrote:
> > kdoney_63021 wrote:
> > > I am interested in working with others who could help engineer a
> > > waterjet system. I am building a precise 3-axis gantry and now I want
> > > to use it for a waterjet cutting system. I have a full machine shop
> > > with time and some money available to push the project ahead if
> > > helped. I will probably purchase the cutting head since this is well
> > > beyond my machining ability but I believe I could machine the pump
> > > and intensifier.
> >
> > You want to machine the intensifier yourself? Do you know what sort of
> > seals they use on a 50,000 PSI pump? I'm sure the sliding seals have to

be

> > pretty exotic, and even the fixed seals have got to be pretty special
> > (copper O-rings, I'd guess). You sure can't hook this up with rubber

hose,

> > pipe clamps and NPT fittings!
> >
> > You also need to be aware that if a leak occurs in your general

direction,

> > they can bury you in a series of small boxes!
> >
> > Jon
>
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