Re: Waterjet on a cnc knee mill

Tom,

Try this for a wide variety of answers by experts

Visit the Waterjet Web Reference: http://www.waterjets.org

Roland


--- In CAD_CAM_EDM_DRO@yahoogroups.com, Tom Harrison <TomH-CNC@T...>
wrote:

> OK, I'll take you up on the offer of answers to questions:
>
> What sources do you recommend for pumps and nozzles? How long do

nozzles

> last? Anything special about the ball bearings? Would BBs do?
>
> Tom Harrison
>
> At 10/31/2005 05:38 AM, you wrote:
> >Just a couple of comments - I have a waterjet in my shop and while

it is an

> >incredible technology for many purposes it also has some

drawbacks - The

> >main one being the large amount of abrasive that needs to be

disposed of -

> >The automatic abrasive removal system I got with the machine

doesn't do the

> >job too well and it does tend to spread abrasive grit and spray

mist all

> >over (I had it in a separate room) -
> >
> >Regarding the use of 20,000 psi, it would work ok but be quite a

bit slower

> >based on my tests at different pressures - I cut various materials,
> >aluminum, steel (up to 2" thick), glass, marble, granite, ceramics

and

> >plastic - I also did some serious experimentation on cutting balsa

and

> >plywood for model airplane kits which does a really nice job

because there

> >is no edge burning as with lasers -
> >
> >I do think that a homebuilt version would be possible and have

been doing

> >some sketches and doodles with a view to making one for pubication

in my

> >HOME SHOP MACHINIST articles - But with several other major

projects ahead

> >of the waterjet it would be at least a couple of years before I

can get to

> >the waterjet - In the meantime, if anyone wants to experiment with

DIY

> >waterjet I would be glad to answer questions although I am far

from being an

> >expert - (Definition - Expert - EX=Has-been - Spurt=Water under

pressure)

> >
> >Roland Friestad
> >
> >
> >
> >Addresses:
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