Re: [CAD_CAM_EDM_DRO] Re: convert drawing to cad file

Chris,

Under the View drop down list, select background bitmaps, place

Bob Campbell

----- Original Message -----
From: <ds@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, June 22, 2003 12:10 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: convert drawing to cad file


> I tried to import a bitmap into rhino but it doesn,t import bmp,anyone
know
> how?
> chris
>
>
>
> I do a high-res scan
> and then import the bitmap into my cad program. (Rhino) Then I
> simply trace lines arcs and splines over the scan. Seems to work much
> faster and better that way.
>
> -------Original Message-------
>
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> Date: Saturday, June 21, 2003 06:53:00 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: convert drawing to cad file
>
> > The best method by far is to use ANY cad system and forget the
> > conversion. None of the conversion programs are worth a rats arse.
> > They convert arcs to many small lines, even straight lines are
> > chopped up.
> > You spend more time trying to clean the drawing up than redoing it.
> > If you need the drawing for a CNC machine you can get horrible
> > results with all the small gaps.
> > About the only place they work is converting artwork where you can
> > put up with inaccurate drawings to get a shape, logo's are an
> example.
>
>
> I agree with John. Raster to vector converters suck. Most of the
> drawings I work with fit in a normal scanner. I do a high-res scan
> and then import the bitmap into my cad program. (Rhino) Then I
> simply trace lines arcs and splines over the scan. Seems to work much
> faster and better that way.
>
>
> Derek
>
>
>
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