what can a waterjet cut

On 2/2/2017 1:38 PM, Bob La Londe wrote:
> "Electric Comet" <[email protected]> wrote in message
> news:[email protected]...
>>
>> seems that it can cut just about anything
>> not sure why wood is not on the list but would expect that it could
>> easily cut wood
>
> It can easily cut wood, but typically its not just water. Its water and
> fine abbrassives. I suspect the water and abbrassive grit would both have a
> negative impact on the media and on second work.

Not to mention the wet mess. The platform that the wood sits on
channels the waste water but typically not before getting water all over
the work piece.

Water and finish cut wood makes for a terrible cut edge.

"Electric Comet" <[email protected]> wrote in message
news:[email protected]...
>
> seems that it can cut just about anything
> not sure why wood is not on the list but would expect that it could
> easily cut wood

It can easily cut wood, but typically its not just water. Its water and
fine abbrassives. I suspect the water and abbrassive grit would both have a
negative impact on the media and on second work.

For the cost I'd either run with CNC laser or CNC router for wood. Laser
for thin stuff like balsa wood kits and some types of engraving, and router
for everything else. Now go look up the relative costs. I could have
several decent CNC routers for the cost of one decent CNC waterjet.

On Thu, 2 Feb 2017 12:38:59 -0700
"Bob La Londe" <[email protected]> wrote:

> It can easily cut wood, but typically its not just water. Its water
> and fine abbrassives. I suspect the water and abbrassive grit would
> both have a negative impact on the media and on second work.

for hard materials they do use abrasives for paper they use water
only and the stream diameter is less than a hair and the paper does
not get wet

do not know if wood cutting does the same or requires abrasives


> For the cost I'd either run with CNC laser or CNC router for wood.
> Laser for thin stuff like balsa wood kits and some types of
> engraving, and router for everything else. Now go look up the
> relative costs. I could have several decent CNC routers for the cost
> of one decent CNC waterjet.

was looking at a used waterjet not to purchase
it is listed at 31000 but i think that was a 5x10 foot bed

a 5x10 cnc bed would be more than 31000

"Electric Comet" <[email protected]> wrote in message
news:[email protected]...
> On Thu, 2 Feb 2017 12:38:59 -0700
> "Bob La Londe" <[email protected]> wrote:
>
>> It can easily cut wood, but typically its not just water. Its water
>> and fine abbrassives. I suspect the water and abbrassive grit would
>> both have a negative impact on the media and on second work.
>
> for hard materials they do use abrasives for paper they use water
> only and the stream diameter is less than a hair and the paper does
> not get wet
>
> do not know if wood cutting does the same or requires abrasives
>
>
>> For the cost I'd either run with CNC laser or CNC router for wood.
>> Laser for thin stuff like balsa wood kits and some types of
>> engraving, and router for everything else. Now go look up the
>> relative costs. I could have several decent CNC routers for the cost
>> of one decent CNC waterjet.
>
> was looking at a used waterjet not to purchase
> it is listed at 31000 but i think that was a 5x10 foot bed
>
> a 5x10 cnc bed would be more than 31000


A NEW 5x10 for a fair unit is going to only run about 15000-20000. A cheap
import can be had for a less. A top of the line might run in the mid or
even high 30s. Some even in the high 40s, but it has a lot of extra stuff
that a water jet doesn't really need like automatic tool changers 15hp
vacuum pump, zoned vacuum hold down table, and more.

I've run across a fair number of used CNC routers I could compare to, but
that should make the point.

I can buy several NEW cnc routers for the same cost as one NEW cnc waterjet.
Best part is the CNC router will do 3D work.

Anyway, you are comparing apples to kumquats.

On Thu, 2 Feb 2017 15:13:49 -0700
"Bob La Londe" <[email protected]> wrote:

thought new 5x10 were a lot more so waterjet is more as you say
but a waterjet cnc is more versatile than a traditional cnc


> Anyway, you are comparing apples to kumquats.

you were the maker of comparisons

have seen ethcings and engravings done via waterjet in 3d

"Electric Comet" <[email protected]> wrote in message
news:[email protected]...
> On Thu, 2 Feb 2017 15:13:49 -0700
> "Bob La Londe" <[email protected]> wrote:
>
> thought new 5x10 were a lot more so waterjet is more as you say
> but a waterjet cnc is more versatile than a traditional cnc
>
>
>> Anyway, you are comparing apples to kumquats.
>
> you were the maker of comparisons

You were comparing new of one to used of another. That's never a fair
comparison.


> have seen ethcings and engravings done via waterjet in 3d

Where a water jet really shines is in stone and tile work.


P.S. Only 30K for a used waterjet would make me pretty nervous about its
condition, but I seen people get lucky before so who know.

On Thu, 2 Feb 2017 18:55:24 -0700
"Bob La Londe" <[email protected]> wrote:

> You were comparing new of one to used of another. That's never a
> fair comparison.

not sure where fair comes into play as it really is just about how much
to spend to get some capability

> Where a water jet really shines is in stone and tile work.

glass as well carbon fiber etc

see the original list

the 3d stuff looks pretty good too


> P.S. Only 30K for a used waterjet would make me pretty nervous about
> its condition, but I seen people get lucky before so who know.

it is used and on cl so one has to become informed to make good choices

"Electric Comet" <[email protected]> wrote in message
news:[email protected]...
> On Thu, 2 Feb 2017 18:55:24 -0700
> "Bob La Londe" <[email protected]> wrote:
>
>> You were comparing new of one to used of another. That's never a
>> fair comparison.
>
> not sure where fair comes into play as it really is just about how much
> to spend to get some capability

You made a judgement that was incorrect, and now you are distorting to try
to win a trivial point. Best of luck to you.

On Tue, 31 Jan 2017 15:48:27 -0800
Electric Comet <[email protected]> wrote:

>
> seems that it can cut just about anything
> not sure why wood is not on the list but would expect that it could
> easily cut wood

turns out plenty of people are using a waterjet to cut wood

with and without abrasives
where the abrasives are used for thick material