Re: CNC PLASMA

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "caudlet" <info@t...> wrote:

> bigger the divit hole gets! It helps to have a CAM package that

will

> let you define the toolpaths and automatically calculate a "lead-

in"

> cut to statrt to torch in the waste part.
>

DeskCNC does this for him automatically. No extra cost CAM needed.

>You need to plan the
> order of your cuts for best results. Most packages that take a
> picture (bitmap) and turn it into a vector file that the conversion
> software that generates g-code do a marginal job of converting and
> for decent results you will spend many hours cleaning up the
> resulting files. You want nice smooth lines and arcs on longer

cuts

> to keep the machine from dancing across the floor.

DeskCNC takes care of some of this too, by creating only closed
shapes. Vector Cad-only would be a good tool to use for optimizing
and precisely controlling location, direction, and order of cuts, arc
fitting, etc.

> 5. Your controller software needs to support continuous contouring
> (Constant Velocity = CV) so the moves are smooth and constant.

Jerky

> moves cause the floppy flame to "color outside the lines" The
> controller software is one of the pieces you need in the CNC
> equation. It takes g-code and puts out signals to the motor

control

> modules. Hobby versions of controller software are available that
> support CV.

DeskCNC handles this better than most because of the smooth pulse
rates available even when using dumpster class Windows computers
running Windows 98.


Best Regards, Fred Smith- IMService

Listserve Special discounts and offers are at:
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