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Imsi Design Cad Arc Problem
« on: August 05, 2010, 11:53:44 AM »
Hello,

I have an issue that I cannot figure out.  When I create an Arc in CAD then import it into Mach 3 it works fine.  The layers are correct and the Entities show the correct Min and Max size.  However, if I try in CAD to adjust the Arc size in the Y region so it is more of a Cone type Arc it fails to import into Mach 3 correctly.  What it does is looses the layers (red x in layers) and the Entities show -9999 and 9999 on X and Y. ???

If anybody has any information on this please help.

Thanks,

Tony

Offline Graham Waterworth

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Re: Imsi Design Cad Arc Problem
« Reply #1 on: August 05, 2010, 12:43:29 PM »
Hi

I have not used that software but in a lot of cases if the arc becomes an oval or ellipse the dxf outputs is a spline and mach3 can not handle splines, if you look in the tools of the cad program you may find an option to convert splines to line segments or a convert to lines option on the dxf output.

Graham
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Offline ger21

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Re: Imsi Design Cad Arc Problem
« Reply #2 on: August 05, 2010, 03:53:54 PM »
Try to export as v12 .dxf, or the oldest possible. V12 and older will usually convert ellipses to polylines.
Gerry

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Re: Imsi Design Cad Arc Problem
« Reply #3 on: August 09, 2010, 11:02:48 AM »
Thanks guys.  I will try your recommendations.  Really like to get this to work.

Tony
Re: Imsi Design Cad Arc Problem
« Reply #4 on: August 11, 2010, 11:59:14 AM »
Awesome...I got it to work ;D

I used my AutoCad Lt to save as Version 12 and it converted the Arc to a 3d Polyline.  It goes into Mach 3 perfectly now.

Thanks guys for the help.

Tony