CAD CAM EDM DRO - Yahoo Group Archive

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

Posted by doug98105
on 2001-12-16 10:20:32 UTC
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.

Discussion Thread

glee@i... 2001-12-15 12:40:33 UTC I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM afogassa 2001-12-15 12:58:15 UTC Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM glee@i... 2001-12-15 13:29:48 UTC Re: [CAD_CAM_EDM_DRO] I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM doug98105 2001-12-15 15:57:20 UTC Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM stevenson_engineers 2001-12-16 03:32:32 UTC Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM doug98105 2001-12-16 10:20:32 UTC Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM stevenson_engineers 2001-12-16 11:01:23 UTC Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM Michael Milligan 2001-12-16 12:14:10 UTC RE: [CAD_CAM_EDM_DRO] Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM Tim Goldstein 2001-12-16 12:21:01 UTC RE: [CAD_CAM_EDM_DRO] Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM doug98105 2001-12-16 12:38:08 UTC Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM Michael Milligan 2001-12-16 13:57:14 UTC RE: [CAD_CAM_EDM_DRO] Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM Michael Milligan 2001-12-16 13:57:18 UTC RE: [CAD_CAM_EDM_DRO] Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM stevenson_engineers 2001-12-16 14:47:43 UTC Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM Tim Goldstein 2001-12-16 17:12:11 UTC RE: [CAD_CAM_EDM_DRO] Re: I need help defining cutter compensation (Offset?) in Dolphin CAD/CAM Chris Clough 2001-12-16 17:14:07 UTC Bridgeport