Re: water jet cam

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Peter Renolds <prenolds@...>
wrote:

>
> I don't think you need any of that 5 axis (or 4 axis)

complication -

> plasma cutters have all the same issues about a curved cutting

profile

> through thicker material. Remember the KISS motto... You have to

limit

> your feed rate to give the waterjet time to cut through. As you

will

> only cutting 2D profiles, you need something that can convert a

DXF

> profile into G-Code. Rasterfratz works for me for 2D cutting and
> engraving letters converted from true-type fonts. You will need a

CAM

> package that supports lead-in so you can cut a clean edge after

you've

> penetrated the material.
>
> Cheers, Peter

Hi Peter,
I do have deskcnc and it's good enough for this, but water jets
needs a good cam that can look way ahead and predicts what is going
to happen and than starts to adjust the feed rate before it gets to
a corner or radius to compensate for Jet lag doing that manualy
would be a pain if not impossible.
Got a quote from PEPs and it runs at 10K US$ (ouch !!)
I've being thinking about getting a working G code, than work this
out on excel to adjust the feed rate.

fogassa