Re: [CAD_CAM_EDM_DRO] Re: Indexer LPT..........true plt arcs???

HI...I'm not sure what you mean by frontend... and yes I am using Ability
Systems software, have version 4 Indexer, with the hpgl Ability controller.
The hpgl controller is set up for plt files to use arcs (AA, AR) type
commands, but hard to find a plt driver that supports these commands, but if
one could, the cutting around arcs and curves would be much smoother, and
with the addition of the controller software to auto slow the speed one sets
for the arcs.....


I am also looking for a good, but reasonable priced G-code controller
software, any suggestions?

Thanks
RC

----- Original Message -----
From: ballendo <ballendo@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, April 22, 2002 3:01 AM
Subject: [CAD_CAM_EDM_DRO] Re: Indexer LPT..........true plt arcs???


> Chris, RC,
>
> Yes, the IX (Indexer-LPT) default is one degree line segments, and
> they are not (were not? I'm most familiar with V.3) "adjusted" for
> larger circles/arcs. You could set the value to anything from one to
> 90, but once set, that value was used for all arcs.
>
> RC, are you using HPIX? (the HPGL frontend for IX provided by Ability
> systems)
>
> The Indexer front-end s/w program "Tool" by Crawford Millworks in TX
> also output arc IX commands.
>
> BTW, HPGL defaults to 5 degrees. Nearly all the HPGL output I have
> seen from CAD systems is line segment PA or PR commands(also PU and
> PD). The HPGL arc commands, which are AA and AR, have been seldom
> seen. Even fewer CAD systems use the HPGL circle command, which is
> CI. Armed with these commands, you can look at the output yourself
> and see if arcs are being used.
>
> And if the program uses The windows native HPGL drivers, beware!
> These have been VERY "buggy" in some versions...
>
> Hope this helps,
>
> Ballendo
>
> P.S. If anyone knows what/where Crawford Millworks is now, I'd like
> to know... (offlist)
>
> --- In CAD_CAM_EDM_DRO@y..., Chris L <datac@l...> wrote:
> > I am pretty sure that if you use any hpgl file and "import" it in
> Indexer, Indexer will convert it to short lines anyhow. That's what I
> recall it doing anyhow.......
> >
> > The only program I know of that would send out actual Arc commands
> directly in the Indexer Language is Cadlink's Signlab. It's no Cad
> program by any means, just a "graphics" application much like Corel
> draw. You can import DXF's for those indepth projects and just use
> Signlab to create all toolpath geometry.
> >
> > It's been a while since I have been down that road but as far as I
> remember, checking the "Use Arcs" box when creating a toolpath did it
> in Indexer Arc "tongue". I would have to reload the Indexer Driver
> and re-live that a bit. Let me know if you need more info.
> >
> > Cadlink, www.cadlink.com, used to sell (not sure if they do now) a
> cutback version with full router support. It was limited to a 20"X
> 30" work area. It costed $795 in the area of version 4.95.
> >
> > Chris L
> >
> > RC wrote:
> >
> > > Does anyone have experience with the Indexer LPT, the question I
> have is with the PLT files used in the program, if created in Corel
> Draw!, arcs are short lines, creating rough circles and
> arcs........... does anyone know of a conversion program, the
> changes the code to true arcs in the PLT language? Or a reasonable
> priced cad program, that has the PLT filter as an export, that uses
> true arcs?
> > >
> > > RC
> > >
>
>
>
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