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Digitizer Calcomp

Digitizer Calcomp

Digitizer Calcomp

(OP)
I have purchased a used CAD system, it has a old 386 computer, Autocad 12, plotter and a Calcomp Drawing Board III with a four button cursor. Plus I can use Autocad to make drawings

My question is how do you use it to digitize a large drawing 24" x 36" ?? I have purchased a used CAD system, it has a old 386 computer, Autocad 12, plotter and a Calcomp Drawing Board III with a four button cursor.

Every thing seems to work and I have the software and two instruction manuals from Calcomp. But what I'm looking for is a very simple step by step tutorial on digitizing a large or small drawing.  

Thanks Bob

RE: Digitizer Calcomp

Are you looking to manually copy the drawing? What I mean is - place the drawing on the digitizer and trace it out onto the screen?

I did that once years ago using a calcomp and AutoCAD (I think R9). What I did was reconfigure the digitizer to use whole area for screen display, then set drawing on digitizer and draw lines as I picked ends of lines on drawing. Once area drawn that was on digitizer I moved drawing and reconfigured the origin of the digitizer and continued. Once done I rescaled the drawing to 1:1 based on measurement of the drawing. Very tedious. Might be easier just to get someone to scan drawing as a raster image and then overlay that and trace it. I'm not sure but I think that's possible with Acad 12. Been a while since I used Acad.

RE: Digitizer Calcomp

I'm not sure how yuor Calcomp is set up, but most digitizing systems allow you to:

>  select a layer for input
>  select some minimum spatial resolution
>  start a polygon entry point by point
>  some means of closing the polygon

That's pretty much it.  There should also be some means of setting the scaling of the tablet to match the drawing's.  

TTFN

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