Re: [CAD_CAM_EDM_DRO] Re: Re: Re: lathe arcs

Fred: Thanks, I had tried the interpolation earlier but with a .001 segment I shut the 650mhz computer down after 50+ minutes trying to make a drawing with four 2" radius fillets. I tried again today at .002" and it generated the drawing in about five minutes. I think it was about 1300 lines of
code but the lathe did draw the right profile. Was the .001 trying to make more lines than Vector8.2 would handle? I haven't installed ver.9 yet. Trying to get these parts made. After this is over I will again pursue the arc problem until I get it right. It is probably something really simple that
I am missing. For now I am just relieved to be able to get back to work on making pieces parts.
Do you think the interpolation method might give me a closer mirrored mate to each roller anyway? Just do an offset of .040" for the material thickness and do a mirror image of that? Thanks again,Carey
IMService wrote:

> >Message: 13
> > Date: Sun, 18 Mar 2001 02:18:12 -0500
> > From: "Carey L. Culpepper" <mr.c@...>
> >Subject: Re: Re: lathe arcs
> >
> >Dave: It is not a one off and to compound the problem each roller has a mate with .040" clearance in between. So , that gives me no
> >leeway at all. The machine must cut to the drawing specs-period. The radius are as large as 2" in some cases. Thanks,anyway. Carey
> >
>
> Carey, I think Don has the right fix. Use the G18 to set the correct plane for your arcs. At one time, I seem to recall a problem with other than G17 arcs, but I think that was fixed in CNCPro.
>
> For the time being, if that does not work, Select your tool path & change-Break-Interpolate to create a series of short line segments that approximate the arcs. These can be established at as close of a resolution as you want. With look ahead they will still cut nearly as smoothly as an arc.
>
> Best Regards, Fred Smith- IMService
> Listserve Special discounts and offers are at: http://209.69.202.197/cadcamedmdro.html
>
> imserv@... Voice:248-486-3600 or 800-386-1670 Fax: 248-486-3698
>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
> Post message: 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@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this page: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Manager
>
> FAQ: http://www.ktmarketing.com/faq.html
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/