Re: [CAD_CAM_EDM_DRO]A question of size managenent.

--- In CAD_CAM_EDM_DRO@egroups.com, BillDarby <ddarby@s...> wrote:

>
> Are you saying that I have a setting in Bob Cad that I can

set in order to produce "3D arcs (G18-G19) arcs" ? I just do not

> recall being able to set such commands in force. Or are you just

generalizing, and also saying that "Vector-Cad-Cam-Can ;-)"

>

Vector generates G-code for 3D arcs. It will actually generate X-Y-Z-
I-J-K for ANY 3D arc. Few controllers can handle the alphabit soup
though and start to choke. There are a couple though that can handle
with supplemental G-codes. When you draw G18-G19 style arcs, you can
cut them with Vector.

Vector can also correctly backplot 3D arcs as long as they do not
exceed 180 degrees, they become indeterminate at that point & Vector
assumes (sometimes incorrectly that it should take the shortest
distance)

By Default B & A cad only develop 3D arc geometry as interpolated
splines. By default Vector does not. I'm not too sure about the
latest Aus, but B17 cannot generate G02/3 except as an X-Y plane.

One of my favorite tricks with Vector is to use the Copy-Snap command
to slap a series of vertical arcs along a splined curve. They look
like the vertebrae & Ribs from a long snake.

Vector is at http://www.imsrv.com & there is now a 30 day demo
download available, including a Vector tutorial manual.

We are in process of releasing Vcarvz & there will be some special
pricing announced tomorrow.

Best Regards,

Fred Smith
IMService