RE: [CAD_CAM_EDM_DRO] Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM

Doug

Yes you are right the Post Processor uses an IF,THEN,ELSE
type of language which the user has full and open access to, my
previous reply to Tim showed where the section of the .DOC
manual deals with Post Processing. I will email you a
sample post processor off list.

On the subject of payment, there are three methods :-

1) PAYPAL - account is 'mmmilligan@...'

2) Bankers Cheque

3) Bank Transfer

Of the three I believe Paypal is quickest and cheapest.

Our address is :-

Dolphin CAD CAM Ltd
7 South Dean Rd
Kilmarnock
KA3 7RE
Scotland
United Kingdom

Web site :- www.dolphin.gb.com

regards
michael


-----Original Message-----
From: doug98105 [mailto:dougrasmussen@...]
Sent: 16 December 2001 20:38
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: I need help defining cutter compensation
(Offset?) in Dolphin CAD/CAM


Michael,

John S showed a section of the "text" file which must be altered in
the post processor. That text file looks suspiciously like VB or
some offshoot. From that I assume a person could tailor their posts
to do virtually anything.

BTW, how does an individual in the USA go about purchasing Dolphin?
How is the payment handled, mail a check, money order, wire transfer,
cash? Shipping charges? Please post your mailing address again, if
you don't mind.

thanks,

Doug




--- In CAD_CAM_EDM_DRO@y..., "Michael Milligan" <mmmilligan@f...>
wrote:

> Doug
>
> Yes, the post processor can be tailored to cope
> with the various practices used in applying CRC. Also
> the contour facility allows you to specify an
> Approach/Runoff move, this move can be used to apply
> or cancel CRC before the tool actually starts the
> Contour. Approach/Runoff moves may be Tangential, Parallel
> or Normal to the direction of cut of the contour.
>
> regards
> michael
>
> -----Original Message-----
> From: doug98105 [mailto:dougrasmussen@c...]
> Sent: 16 December 2001 18:20
> To: CAD_CAM_EDM_DRO@y...
> Subject: [CAD_CAM_EDM_DRO] Re: I need help defining cutter

compensation

> (Offset?) in Dolphin CAD/CAM
>
>
> John,
>
> Dolphin looks pretty straight forward. Obviously, the second

screen

> shot you provided would be my favored way of doing the job

(provided

> the CNC controller will support it).
>
> I looked over the generated code and noticed some things that may

not

> work with all controllers. It appears the end mill goes to depth,
> then compensates (G41) while at depth with a feed rate of F12.

Some

> controllers compensate at rapid rate which would not be a good
> situation if the cutter is already into the part. Likewise, the

G40

> while the cutter is still at depth. In my shop I have 4 different
> controls, all have their own strange habits when it comes to CRC,

so

> we make it a rule to always try to engage CRC with the cutter at

Z.1

> above the part.
>
> Is there a way to "teach" Dolphin about the CRC quirks of different
> controllers?
>
> thanks,
>
> Doug
>
>
>
>
>
> --- In CAD_CAM_EDM_DRO@y..., "stevenson_engineers" <machines@n...>
> wrote:
> > --- In CAD_CAM_EDM_DRO@y..., "doug98105" <dougrasmussen@c...>

wrote:

> > > Eric,
> > >
> > > In the long run you'll be much better off letting the CNC
> > >controller
> > > do the offsetting rather than doing it in CAM. Of course this
> only
> > > works if your controller supports CRC (cutter radius
> compensation),
> > >I
> > > think Ahha does.
> > >
> > > To have your controller handle the CRC, requires the CAM

software

> > >to
> > > insert the correct offset commands, G40,G41,G42, in the
> appropriate
> > > places in your Gcode file. I don't know anything about Dolphin
> so
> > >I
> > > have no idea whether it will do this for you automatically, or
> > > whether you have to manually edit the Gcode file and insert the
> > > commands yourself.
> > >
> > Doug and list,
> > Look at:-
> > http://homepage.ntlworld.com/machines/offset.txt
> > To see how Dolphin handles offsets automatically.
> > You don't need to draw offsets in Dolphin, it will do it all for
> you.
> >
> > John S.
>
>
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>
>
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