RE: [CAD_CAM_EDM_DRO] Cutting an arc help G2/G3?

George,

I have drawn this part up in CAD, I can send you a gcode file that will cut
it, but it would be much better if I knew what size endmill you will be
using so I can put in the appropriate offsets. Of course if your control
does cutter radius compensation then there is nothing to worry about.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: gglines1 [mailto:gglines@...]
> Sent: Tuesday, June 24, 2003 14:55 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Cutting an arc help G2/G3?
>
>
> I have to cut a small workpiece with a curve. The workpiece will be
> 2.5 inches long, 1" wide and 1/2" thick. The long end of the
> rectangle needs to be cut in an arc to match a 12" circle, the
> shorter inside arc to match an 11" circle. Hard to describe, think
> of a 2.5" long piece cut out of a 12" ring that is 1" wide.
>
> Assuming I start with a workpiece that is a rectange 2.5" long by 1"
> wide, how would I program the arc cut? I can see programming a
> circle and letting the machine make a 12" revolution, but that would
> be really slow. I'm not sure how to program just the part of the arc
> that I need.
>
> Thanks,
>
> George
>
>
>
> (FYI: My controller software (Microkinetics Millmaster Pro)
> recognizes I and J parameters but not the R parameter with G2/G3)
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> wanliker@..., timg@...
> Moderator: pentam@... indigo_red@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to
> reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this
> to be a sister site to the CCED group, as many of the same
> members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO
> EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>